CN104092460A - Calibration control method and device for oscillator and electronic device - Google Patents
Calibration control method and device for oscillator and electronic device Download PDFInfo
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- CN104092460A CN104092460A CN201410363736.5A CN201410363736A CN104092460A CN 104092460 A CN104092460 A CN 104092460A CN 201410363736 A CN201410363736 A CN 201410363736A CN 104092460 A CN104092460 A CN 104092460A
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Abstract
The invention discloses a calibration control method and device for an oscillator and an electronic device. The method comprises the first step of controlling an oscillating circuit of the oscillator to be connected with different capacitors, the second step of controlling the states of a transmitting circuit, a power amplifying circuit and a receiving circuit according to the working mode of the electronic device under each capacitor connected with the oscillating circuit, the third step of controlling each circuit in the working state to work at different powers in each working mode, and obtaining first frequency at each working power in an obtaining mode corresponding to the working mode, the fourth step of calculating the output frequency of the oscillator according to the first frequency and frequency doubling parameters of the local oscillator, and the fifth step of establishing the corresponding relations between the capacitors, the output frequency and the working power in each working mode. In this way, it is guaranteed that the established corresponding relation between the capacitors and the output frequency of the oscillator accords with the actual working state of the electronic device, then the frequency error of the oscillator is lowered, and the frequency performance of the oscillator is improved.
Description
Technical field
The present invention relates to oscillator technical field, relate in particular a kind of adjustment controlling means, device and electronic equipment of oscillator.
Background technology
Oscillator is a kind of electronic component that repeats electric signal (normally sine wave or square wave) that is used for producing, and the circuit that forms oscillator is called oscillating circuit.Oscillator is widely used in various electronic equipments, for the radiating circuit of electronic equipment and the local oscillator of receiving circuit provide reference frequency.
Wherein, electronic equipment, before using oscillator, all needs oscillator to calibrate.Concrete, it is in running order that electronic equipment is controlled radiating circuit, and the power amplification circuit being connected with radiating circuit is worked under low power state, by power amplifier, the signal of radiating circuit transmitting is carried out to frequency multiplication, by the signal after test frequency multiplication, calculate the output frequency that oscillator is corresponding, and then set up the corresponding relation of different electric capacity and output frequency in oscillator.In electronic equipment real work, thus can be by regulating the electric capacity of oscillator to control the output frequency of oscillator.
But, because electronic equipment is in real work, the mode of operation of electronic equipment is not identical, as in running order in being radiating circuit, also may be that receiving circuit is in running order, may be also that radiating circuit and receiving circuit are simultaneously in running order, in addition, radiating circuit, power amplification circuit, receiving circuit be operating power is in the same time completely not different yet.And the calibration of oscillator is just in running order at radiating circuit, and the power amplification circuit being connected with radiating circuit is operated in and carries out under lower-wattage, therefore, the electric capacity of setting up does not conform to the actual working state of electronic equipment with the corresponding relation of output frequency, and then cause the frequency deviation of oscillator larger, reduced the frequency performance of oscillator.
Summary of the invention
In view of this, the invention provides a kind of adjustment controlling means of oscillator, to solve in prior art, the actual working state of the electric capacity of oscillator and the corresponding relation of output frequency and electronic equipment is not inconsistent, and causes the frequency deviation of oscillator larger, has reduced the technical problem of the frequency performance of oscillator.
For achieving the above object, the invention provides following technical scheme:
A kind of adjustment controlling means of oscillator, be applied in electronic equipment, described electronic equipment comprises radiating circuit, the power amplification circuit being connected with described radiating circuit, receiving circuit, the communication unit being connected with described receiving circuit with described power amplification circuit respectively and the connected test cell of described communication unit, described oscillator is used to the local oscillator of described radiating circuit and described receiving circuit that reference frequency is provided, and the method comprises:
The oscillating circuit of controlling described oscillator accesses different electric capacity;
Under each electric capacity of described oscillating circuit access, according to the mode of operation of described electronic equipment, control the state of described radiating circuit, described power amplification circuit and described receiving circuit; The state of described radiating circuit, described power amplification circuit and described receiving circuit comprises operating state and operating state not;
Under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with described mode of operation obtains the first frequency under each operating power;
According to the frequency parameter of described first frequency and described local oscillator, calculate the output frequency of described oscillator;
Under each mode of operation, set up the corresponding relation of electric capacity, output frequency and operating power.
Preferably, the mode of operation of described electronic equipment comprises the first mode of operation, the second mode of operation and the 3rd mode of operation;
Under described the first mode of operation, described radiating circuit, described power amplification circuit and described receiving circuit are all in running order;
Under described the second mode of operation, described radiating circuit and described power amplification circuit are in running order, and described receiving circuit is in operating state not;
Under described the 3rd mode of operation, described radiating circuit and described power amplification circuit are in operating state not, and described receiving circuit is in running order.
Preferably, when described electronic equipment is under the first mode of operation or the second mode of operation, described test cell is for testing the signal frequency of described power amplification circuit output, and the first frequency that the described foundation obtain manner corresponding with described mode of operation obtains under each operating power is specially:
Obtain the first frequency under each operating power that described test cell tests.
Preferably, at described electronic equipment, under the 3rd mode of operation, described test cell is for launching the signal of second frequency;
The first frequency that the described foundation obtain manner corresponding with described mode of operation obtains under each operating power is specially:
Obtain described receiving circuit and send to the signal of base band and the signal of the second frequency that described test cell is launched under each operating power;
According to sending to the frequency of signal of described base band and the first frequency that described second frequency calculates described local oscillator under each operating power.
Preferably, when described electronic equipment is in running order, described under each mode of operation, the corresponding relation of setting up electric capacity, output frequency and operating power also comprises afterwards:
Detect the residing mode of operation of described electronic equipment and in running order under the operating power of circuit;
In corresponding relation under the residing mode of operation of described electronic equipment, search the electric capacity corresponding with described operating power;
Access electric capacity according to oscillating circuit described in the Capacity control finding.
A kind of calibration control device of oscillator, be applied in electronic equipment, described electronic equipment comprises radiating circuit, the power amplification circuit being connected with described radiating circuit, receiving circuit, the communication unit being connected with described receiving circuit with described power amplification circuit respectively and the connected test cell of described communication unit, described oscillator is used to the local oscillator of described radiating circuit and described receiving circuit that reference frequency is provided, and this device comprises:
The first control unit, accesses different electric capacity for controlling the oscillating circuit of described oscillator;
The second control unit, under each electric capacity in described oscillating circuit access, controls the state of described radiating circuit, described power amplification circuit and described receiving circuit according to the mode of operation of described electronic equipment; The state of described radiating circuit, described power amplification circuit and described receiving circuit comprises operating state and operating state not;
Control acquiring unit, under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with described mode of operation obtains the first frequency under each operating power;
The first computing unit, calculates the output frequency of described oscillator for the frequency parameter according to described first frequency and described local oscillator;
First sets up unit, under each mode of operation, sets up the corresponding relation of electric capacity, output frequency and operating power.
Preferably, the mode of operation of described electronic equipment comprises the first mode of operation, the second mode of operation and the 3rd mode of operation;
Under described the first mode of operation, described radiating circuit, described power amplification circuit and described receiving circuit are all in running order;
Under described the second mode of operation, described radiating circuit and described power amplification circuit are in running order, and described receiving circuit is in operating state not;
Under described the 3rd mode of operation, described radiating circuit and described power amplification circuit are in operating state not, and described receiving circuit is in running order.
Preferably, when described electronic equipment is under the first mode of operation or the second mode of operation, described test cell is for testing the signal frequency of described power amplification circuit output, described control acquiring unit specifically for: under each mode of operation, control each circuit under in running order and work under different operating power, and obtain the first frequency under each operating power that described test cell tests.
Preferably, at described electronic equipment, under the 3rd mode of operation, described test cell is for launching the signal of second frequency;
Described control acquiring unit comprises controls acquisition module and computing module;
Described control acquisition module is under each mode of operation, control each circuit under in running order and work under different operating power, and obtain described receiving circuit and send to the signal of base band and the signal of the second frequency that described test cell is launched under each operating power;
Described computing module is for according to sending to the frequency of signal of described base band and the first frequency that described second frequency calculates described local oscillator under each operating power.
Preferably, when described electronic equipment is in running order, also comprise:
The first detecting unit, for detection of the residing mode of operation of described electronic equipment and in running order under the operating power of circuit;
First searches unit, for the corresponding relation under the residing mode of operation of described electronic equipment, searches the electric capacity corresponding with described operating power;
The 3rd control unit, for the access electric capacity according to oscillating circuit described in the Capacity control finding.
An electronic equipment, is characterized in that, comprises the calibration control device of the oscillator described in as above any one.
Known via above-mentioned technical scheme, compared with prior art, the embodiment of the present invention provides a kind of adjustment controlling means of oscillator, oscillator can provide reference frequency for the radiating circuit of electronic equipment and the local oscillator of receiving circuit, in the method, under each electric capacity of the oscillating circuit access of oscillator, mode of operation according to electronic equipment is controlled radiating circuit, the state of power amplification circuit and receiving circuit, and under each mode of operation, the circuit of controlling under in running order is worked under different operating powers, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power, according to the frequency parameter of first frequency and local oscillator, calculate the output frequency of oscillator, set up under each mode of operation, the corresponding relation of electric capacity, output frequency and operating power, thereby guaranteed the electric capacity of the oscillator of setting up and the corresponding relation of output frequency conform to the actual working state of electronic equipment, and then reduce the frequency error of oscillator, improve the frequency performance of oscillator.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the structural representation of the disclosed a kind of electronic equipment of the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the adjustment controlling means of the disclosed oscillator of one embodiment of the invention;
Fig. 3 is the schematic flow sheet of the adjustment controlling means of the disclosed oscillator of another embodiment of the present invention;
Fig. 4 is the structural representation of the calibration control device of the disclosed oscillator of one embodiment of the invention;
Fig. 5 is the structural representation of the calibration control device of the disclosed oscillator of another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention discloses a kind of adjustment controlling means of oscillator, device and electronic equipment, oscillator can provide reference frequency for the radiating circuit of electronic equipment and the local oscillator of receiving circuit, in the method, under each electric capacity of the oscillating circuit access of oscillator, mode of operation according to electronic equipment is controlled radiating circuit, the state of power amplification circuit and receiving circuit, and under each mode of operation, the circuit of controlling under in running order is worked under different operating powers, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power, according to the frequency parameter of first frequency and local oscillator, calculate the output frequency of oscillator, set up under each mode of operation, the corresponding relation of electric capacity, output frequency and operating power, thereby guarantee the electric capacity of the oscillator of setting up and the corresponding relation of output frequency conform to the actual working state of electronic equipment, and then reduce the frequency error of oscillator, improve the frequency performance of oscillator.
One embodiment of the invention discloses a kind of adjustment controlling means of oscillator, can be applied in the electronic equipments such as mobile phone, palmtop PC, panel computer.
Fig. 1 shows a kind of structural representation of electronic equipment, and as shown in Figure 1, this electronic equipment can comprise radiating circuit 100, power amplification circuit 200, receiving circuit 300, communication unit 400, test cell 500, local oscillator 600; Wherein:
Power amplification circuit 200 is connected with radiating circuit 100, for the signal of amplification emissioning circuit 100 transmittings;
Communication unit 400 is connected with receiving circuit 300 with power amplification circuit 200 respectively, the signal that the signal receiving for receiving circuit and power amplification circuit occur;
Concrete, for the electronic equipment of frequency division multiplexing communication system, communication unit can be duplexer; For the electronic equipment of system for time division multiplex communication, communication unit can be switch.
Test cell 500 is connected with communication unit 400.
Oscillator 700 is used to the local oscillator 600 of radiating circuit 100 and receiving circuit 300 that reference frequency is provided.
As shown in Figure 2, the method can comprise the following steps:
Step 201: the oscillating circuit of controlling oscillator accesses different electric capacity;
The oscillating circuit of oscillator is generally comprised of a plurality of electric capacity, and the number that can access by controlling electric capacity in oscillating circuit makes oscillating circuit export different frequencies; Therefore, in to oscillator calibration procedure, can control oscillating circuit and access different electric capacity, to determine the output frequency of oscillating circuit under different electric capacity.
Step 202: under each electric capacity of oscillator access, control the state of radiating circuit, power amplification circuit and receiving circuit according to the mode of operation of electronic equipment;
Wherein, the state of radiating circuit, power amplification circuit and receiving circuit comprises operating state and operating state not;
Electronic equipment comprises multiple-working mode, and under different mode of operations, the state of radiating circuit, power amplification circuit and receiving circuit is different; And in order to realize the calibration to oscillator under the real work state at electronic equipment, therefore, can control according to the mode of operation of electronic equipment the state of radiating circuit, power amplification circuit and receiving circuit.
As electronic equipment can comprise three kinds of mode of operations, i.e. the first mode of operation, the second mode of operation and the 3rd mode of operation;
At electronic equipment, under the first mode of operation, radiating circuit, power amplification circuit and receiving circuit are all in running order;
At electronic equipment, under the second mode of operation, radiating circuit and power amplification circuit are in running order, and receiving circuit is in operating state not;
At electronic equipment, under the 3rd mode of operation, radiating circuit and power amplification circuit are in operating state not, and receiving circuit is in running order.
Above three kinds of mode of operations are the common mode of operation of electronic equipment, for other mode of operations of electronic equipment also within protection scope of the present invention.
In the present invention, can, under each electric capacity of oscillating circuit, control electronic equipment in different mode of operations.
Step 203: under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power;
Electronic equipment is under each mode of operation, and the circuit under each is in running order all has a plurality of operating powers; For example, when electronic equipment is under the first mode of operation, the operating power of radiating circuit can comprise power P 1, power P 2 and power P 3; The operating power of power amplification circuit can comprise power P 4, power P 5 and power P 6; The operating power of receiving circuit can comprise power P 7, power P 8, power P 9.
It should be noted that, when changing the operating power of a certain circuit under in running order, can corresponding change the operating power of other circuit under in running order, also can not change the operating power of other circuit under in running order, also can change the operating power of other circuit under in running order of part, concrete condition all can be according to electronic equipment under actual working state, the conventional matching way of the circuit under in running order and determining, the present invention is concrete restriction not.
For example, take the first mode of operation as example, when changing the operating power of radiating circuit, can corresponding change power amplification circuit and the operating power of receiving circuit; Concrete, can first control radiating circuit and at power, work for 7 times at 4 times work of power P, control receiving circuit at 1 time work of power P, power ratio control amplifying circuit; Utilize the obtain manner corresponding with mode of operation to obtain radiating circuit in 1 time work of power P, power ratio control amplifying circuit is in power P 4, and receiving circuit is at the first frequency of 7 times work of power P; Controlling radiating circuit works for 8 times in power P at 5 times work of power P, control receiving circuit at 2 times work of power P, power ratio control amplifying circuit again; Utilize the obtain manner corresponding with mode of operation to obtain radiating circuit in 2 times work of power P, power ratio control amplifying circuit is in power P 5, and receiving circuit is at the first frequency of 8 times work of power P.
For example, take the first mode of operation as example, when changing the operating power of radiating circuit, can not change the operating power of power amplification circuit and receiving circuit; Concrete, can first control radiating circuit and in power P, work for 8 times at 5 times work of power P, control receiving circuit at 1 time work of power P, power ratio control amplifying circuit; Utilize the obtain manner corresponding with mode of operation to obtain radiating circuit in 1 time work of power P, power ratio control amplifying circuit is in power P 5, and receiving circuit is at the first frequency of 8 times work of power P; Control again radiating circuit and still in power P, work, control receiving circuit for 5 times still in 8 times work of power P at 2 times work of power P, power ratio control amplifying circuit; Utilize the obtain manner corresponding with mode of operation to obtain radiating circuit in 2 times work of power P, power ratio control amplifying circuit is in power P 5, and receiving circuit is at the first frequency of 8 times work of power P.
For example, take the first mode of operation as example, when changing the operating power of radiating circuit, can only change the operating power of power amplification circuit; Concrete, can first control radiating circuit and in power P, work for 8 times at 5 times work of power P, control receiving circuit at 1 time work of power P, power ratio control amplifying circuit; Utilize the obtain manner corresponding with mode of operation to obtain radiating circuit in 1 time work of power P, power ratio control amplifying circuit is in power P 5, and receiving circuit is at the first frequency of 8 times work of power P; Control again radiating circuit and in power P, work, control receiving circuit for 6 times still in 8 times work of power P at 2 times work of power P, power ratio control amplifying circuit; Utilize the obtain manner corresponding with mode of operation to obtain radiating circuit in 2 times work of power P, power ratio control amplifying circuit is in power P 6, and receiving circuit is at the first frequency of 8 times work of power P.
Wherein, in the present invention, mode of operation is different, and the mode of obtaining first frequency is also different, therefore, needs to utilize the obtain manner corresponding with mode of operation to obtain the first frequency under each operating power.
Step 204: the output frequency that calculates oscillator according to the frequency parameter of first frequency and local oscillator;
Wherein, first frequency is the frequency after the output frequency of local oscillator double-frequency oscillation device, so, can calculate the output frequency of oscillator by first frequency and frequency parameter.
Step 205: under each mode of operation, set up the corresponding relation of electric capacity, output frequency and operating power.
Wherein, under each electric capacity of oscillator access, electronic equipment all has multiple-working mode, and under each mode of operation, circuit under each is in running order can be operated under different operating powers, and under each operating power, finally all can calculate an output frequency; By under each mode of operation, set up the corresponding relation of electric capacity, output frequency and operating power, and this corresponding relation is stored in to electronic equipment, make electronic equipment when real work, can, according to the operating power of its mode of operation of living in, circuit under in running order, control the access electric capacity of oscillator.
In embodiments of the present invention, oscillator can provide reference frequency for the radiating circuit of electronic equipment and the local oscillator of receiving circuit, in the method, under each electric capacity of the oscillating circuit access of oscillator, according to the mode of operation of electronic equipment, control the state of radiating circuit, power amplification circuit and receiving circuit, and under each mode of operation, the circuit of controlling under in running order is worked under different operating powers, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power; According to the frequency parameter of first frequency and local oscillator, calculate the output frequency of oscillator, set up under each mode of operation, the corresponding relation of electric capacity, output frequency and operating power, thereby guarantee the electric capacity of the oscillator of setting up and the corresponding relation of output frequency conform to the actual working state of electronic equipment, and then reduce the frequency error of oscillator, improve the frequency performance of oscillator.
For ease of understanding, the present invention further describes with an example, supposes that the access electric capacity of the oscillating circuit of oscillator comprises C1, C2, C3; The mode of operation of electronic equipment comprises the first mode of operation, the second mode of operation and the 3rd mode of operation; Under the first mode of operation, the circuit under in running order comprises radiating circuit, power amplification circuit and receiving circuit; Under the second mode of operation, the circuit under in running order comprises radiating circuit and power amplification circuit; Under the 3rd mode of operation, the circuit under in running order comprises receiving circuit;
Under the first mode of operation, the operating power matching relationship of radiating circuit, power amplification circuit and receiving circuit is:
The operating power P7 of the operating power P1 of radiating circuit, the operating power P4 of power amplification circuit, receiving circuit;
The operating power P7 of the operating power P2 of radiating circuit, the operating power P5 of power amplification circuit, receiving circuit.
Under the second mode of operation, radiating circuit and power amplification circuit matching relationship are:
The operating power P1 of radiating circuit, the operating power P4 of power amplification circuit;
The operating power P1 of radiating circuit, the operating power P5 of power amplification circuit.
Under the second mode of operation, the operating power of receiving circuit comprises P7 and P8
So, in the present invention, can comprise the following steps:
Step S1: control oscillating circuit access capacitor C 1;
Step S2: when pierce circuit access capacitor C 1, control radiating circuit, power amplification circuit and receiving circuit according to the first mode of operation of electronic equipment in running order;
Step S3: the operating power of controlling radiating circuit is that the operating power of P1, power amplification circuit is that the operating power of P4, receiving circuit is P7, utilizes the obtain manner corresponding with the first mode of operation to obtain the first frequency F1 under this operating power;
Step S4: the output frequency f1 that calculates oscillator according to the frequency parameter of first frequency F1 and local oscillator;
Step S5: under the first mode of operation, set up the operating power P1 of capacitor C 1, output frequency f1 and radiating circuit, the corresponding relation of the operating power P7 of the operating power P4 of power amplification circuit, receiving circuit;
Step S6: when pierce circuit access capacitor C 1, control radiating circuit, power amplification circuit and receiving circuit according to the first mode of operation of electronic equipment in running order;
Step S7: the operating power of controlling radiating circuit is that the operating power of P2, power amplification circuit is that the operating power of P5, receiving circuit is P7, utilizes the obtain manner corresponding with the first mode of operation to obtain the first frequency F2 under this operating power;
Step S8: the output frequency f2 that calculates oscillator according to the frequency parameter of first frequency F2 and local oscillator;
Step S9: under the first mode of operation, set up the operating power P2 of capacitor C 1, output frequency f2 and radiating circuit, the corresponding relation of the operating power P7 of the operating power P5 of power amplification circuit, receiving circuit;
The like, the in the situation that of oscillator access capacitor C 1, then carry out follow-up a series of operation according to the second mode of operation of electronic equipment; The 3rd mode of operation of electronic equipment is carried out follow-up a series of operation successively again.
Subsequently, then control electronic equipment access capacitor C 3, then according to the first mode of operation, the second mode of operation and the 3rd mode of operation of electronic equipment, carry out follow-up a series of operation respectively.
In the present invention, the difference of mode of operation, makes the obtain manner of first frequency under each operating power also not identical; Wherein:
When electronic equipment is in the first mode of operation or second mode of operation lower time, radiating circuit and power amplification circuit are all in running order, therefore, communication unit can receive the signal of the radiating circuit transmitting after amplifying by power amplification unit, the signal frequency of the power amplification circuit output that accordingly, test cell can test communications unit receives.
Accordingly, the first frequency obtaining under each operating power according to the obtain manner corresponding with mode of operation is specifically as follows: obtain the first frequency under each operating power that test cell tests.
This first frequency is the frequency after the output frequency of local oscillator double-frequency oscillation device.
Wherein, in the present embodiment, at electronic equipment, under the first mode of operation, radiating circuit, power amplification circuit and receiving circuit are all in running order;
At electronic equipment, under the second mode of operation, radiating circuit and power amplification circuit are in running order, and receiving circuit is in operating state not.
When electronic equipment is in the 3rd mode of operation lower time, receiving circuit is in running order, and radiating circuit and power amplification circuit are all in operating state not; And receiving circuit can send the baseband transmit signals to electronic equipment, now, test cell itself can be launched the signal of second frequency;
Accordingly, the first frequency obtaining under each operating power according to the obtain manner corresponding with mode of operation is specially:
Obtain receiving circuit and send to the signal of base band and the signal of the second frequency that test cell is launched under each operating power;
Wherein, when electronic equipment is under the 3rd mode of operation, can control receiving circuit and be operated under different operating powers, and receiving circuit can be by it under each operating power, to the baseband transmit signals of electronic equipment; Test cell can be launched the signal of second frequency under each operating power of receiving circuit.
According to sending to the signal frequency of base band and the first frequency that second frequency calculates local oscillator under each operating power.
Wherein, first frequency equals signal frequency and the second frequency sum of base band, is the frequency after the output frequency of local oscillator double-frequency oscillation device.
Another embodiment of the present invention also discloses a kind of adjustment controlling means of oscillator, and as shown in Figure 3, the method can comprise the following steps:
Step 301: the oscillating circuit of controlling oscillator accesses different electric capacity;
Step 302: under each electric capacity of oscillator access, control the state of radiating circuit, power amplification circuit and receiving circuit according to the mode of operation of electronic equipment;
Step 303: under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power;
Step 304: the output frequency that calculates oscillator according to the frequency parameter of first frequency and local oscillator;
Step 305: under each mode of operation, set up the corresponding relation of electric capacity, output frequency and operating power.
Step 306: the residing mode of operation of detected electrons equipment and in running order under the operating power of circuit;
After completing the calibration of oscillator, when electronic equipment is in running order, can the residing mode of operation of detected electrons equipment and in running order under the operating power of circuit so that oscillator can be exported the frequency corresponding with electronic equipment actual working state;
Step 307: in the corresponding relation under the residing mode of operation of electronic equipment, search the electric capacity corresponding with operating power;
For example, when electronic equipment being detected in the 3rd mode of operation,, in the corresponding relation from the 3rd mode of operation, search the electric capacity corresponding with the operating power of receiving circuit.
Step 308: according to the access electric capacity of the Capacity control oscillating circuit finding.
The access electric capacity of the Capacity control oscillating circuit finding by foundation, conforms to the output frequency of oscillator and the actual working state of electronic equipment.
It should be noted that, when in the residing mode of operation of electronic equipment, find with in running order under electric capacity corresponding to the operating power of circuit have a plurality of, so, can detect the electric capacity of the current access of oscillating circuit, from a plurality of electric capacity that find, determine the electric capacity close with the electric capacity of the current access of oscillating circuit, and the access electric capacity of the determined Capacity control oscillating circuit close with the electric capacity current access of oscillating circuit of foundation.
In embodiments of the present invention, oscillator can provide reference frequency for the radiating circuit of electronic equipment and the local oscillator of receiving circuit, in the method, under each electric capacity of the oscillating circuit access of oscillator, according to the mode of operation of electronic equipment, control the state of radiating circuit, power amplification circuit and receiving circuit, and under each mode of operation, the circuit of controlling under in running order is worked under different operating powers, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power; According to the frequency parameter of first frequency and local oscillator, calculate the output frequency of oscillator, set up under each mode of operation, the corresponding relation of electric capacity, output frequency and operating power, thereby guarantee the electric capacity of the oscillator of setting up and the corresponding relation of output frequency conform to the actual working state of electronic equipment, and then reduce the frequency error of oscillator, improve the frequency performance of oscillator.
One embodiment of the invention also discloses a kind of calibration control device of oscillator, and this device can be applied in the electronic equipments such as mobile phone, palmtop PC, panel computer.
This electronic equipment comprises radiating circuit, the power amplification circuit being connected with radiating circuit, receiving circuit, the communication unit being connected with receiving circuit with power amplification circuit respectively, the test cell being connected with communication unit and the local oscillator being connected with receiving circuit with radiating circuit.
Wherein, oscillator is used to the local oscillator of radiating circuit and receiving circuit that reference frequency is provided.
As shown in Figure 4, this device can comprise: the first control unit 401, the second control unit 402, control acquiring unit 403, the first computing unit 404, first are set up unit 405; Wherein:
The first control unit 401, can access different electric capacity for controlling the oscillating circuit of oscillator;
The second control unit 402, can, under each electric capacity in oscillating circuit access, control the state of radiating circuit, power amplification circuit and receiving circuit according to the mode of operation of electronic equipment;
Wherein: the state of radiating circuit, power amplification circuit and receiving circuit comprises operating state and operating state not;
Electronic equipment comprises multiple-working mode, and under different mode of operations, the state of radiating circuit, power amplification circuit and receiving circuit is different; And in order to realize the calibration to oscillator under the real work state at electronic equipment, therefore, can control according to the mode of operation of electronic equipment the state of radiating circuit, power amplification circuit and receiving circuit.
As electronic equipment can comprise three kinds of mode of operations, i.e. the first mode of operation, the second mode of operation and the 3rd mode of operation;
At electronic equipment, under the first mode of operation, radiating circuit, power amplification circuit and receiving circuit are all in running order;
At electronic equipment, under the second mode of operation, radiating circuit and power amplification circuit are in running order, and receiving circuit is in operating state not;
At electronic equipment, under the 3rd mode of operation, radiating circuit and power amplification circuit are in operating state not, and receiving circuit is in running order.
Above three kinds of mode of operations are the common mode of operation of electronic equipment, for other mode of operations of electronic equipment also within protection scope of the present invention.
Control acquiring unit 403, can be under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power;
The first computing unit 404, can calculate for the frequency parameter according to first frequency and local oscillator the output frequency of oscillator;
First sets up unit 405, can, under each mode of operation, set up the corresponding relation of electric capacity, output frequency and operating power.
In embodiments of the present invention, oscillator can provide reference frequency for the radiating circuit of electronic equipment and the local oscillator of receiving circuit, in the method, under each electric capacity of the oscillating circuit access of oscillator, according to the mode of operation of electronic equipment, control the state of radiating circuit, power amplification circuit and receiving circuit, and under each mode of operation, the circuit of controlling under in running order is worked under different operating powers, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power; According to the frequency parameter of first frequency and local oscillator, calculate the output frequency of oscillator, set up under each mode of operation, the corresponding relation of electric capacity, output frequency and operating power, thereby guarantee the electric capacity of the oscillator of setting up and the corresponding relation of output frequency conform to the actual working state of electronic equipment, and then reduce the frequency error of oscillator, improve the frequency performance of oscillator.
In the present invention, the difference of mode of operation, makes the obtain manner of first frequency under each operating power also not identical; Wherein:
When electronic equipment is in the first mode of operation or second mode of operation lower time, radiating circuit and power amplification circuit are all in running order, therefore, communication unit can receive the signal of the radiating circuit transmitting after amplifying by power amplification unit, the signal frequency of the power amplification circuit output that accordingly, test cell can test communications unit receives.
Accordingly, controlling acquiring unit specifically can be for: under each mode of operation, control each circuit under in running order and work under different operating power, and obtain the first frequency under each operating power that test cell tests.
This first frequency is the frequency after the output frequency of local oscillator double-frequency oscillation device.
Wherein, in the present embodiment, at electronic equipment, under the first mode of operation, radiating circuit, power amplification circuit and receiving circuit are all in running order;
At electronic equipment, under the second mode of operation, radiating circuit and power amplification circuit are in running order, and receiving circuit is in operating state not.
When electronic equipment is in the 3rd mode of operation lower time, receiving circuit is in running order, and radiating circuit and power amplification circuit are all in operating state not; And receiving circuit can send the baseband transmit signals to electronic equipment, now, test cell itself can be launched the signal of second frequency;
Accordingly, control acquiring unit and can comprise control acquisition module and computing module;
Controlling acquisition module can be under each mode of operation, control each circuit under in running order and work under different operating power, and obtain described receiving circuit and send to the signal of base band and the signal of the second frequency that described test cell is launched under each operating power;
Wherein, when electronic equipment is under the 3rd mode of operation, can control receiving circuit and be operated under different operating powers, and receiving circuit can be by it under each operating power, to the baseband transmit signals of electronic equipment; Test cell can be launched the signal of second frequency under each operating power of receiving circuit.
Computing module can be for according to sending to the frequency of signal of base band and the first frequency that second frequency calculates local oscillator under each operating power.
Wherein, first frequency equals signal frequency and the second frequency sum of base band, is the frequency after the output frequency of local oscillator double-frequency oscillation device.
Further embodiment of this invention also discloses a kind of calibration control device of oscillator, as shown in Figure 5, this device can comprise: the first control unit 501, the second control unit 502, control acquiring unit 503, the first computing unit 504, first are set up unit 505, the first detecting unit 506, first is searched unit 507 and the 3rd control unit 508; Wherein:
The first control unit 501, can access different electric capacity for controlling the oscillating circuit of oscillator;
The second control unit 502, can, under each electric capacity in oscillating circuit access, control the state of radiating circuit, power amplification circuit and receiving circuit according to the mode of operation of electronic equipment;
Control acquiring unit 503, can be under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power;
The first computing unit 504, can calculate for the frequency parameter according to first frequency and local oscillator the output frequency of oscillator;
First sets up unit 505, can, under each mode of operation, set up the corresponding relation of electric capacity, output frequency and operating power;
Wherein, when electronic equipment is in running order, the first detecting unit 506, can for detection of the residing mode of operation of electronic equipment and in running order under the operating power of circuit;
First searches unit 507, can, in the corresponding relation under the residing mode of operation of electronic equipment, search the electric capacity corresponding with operating power;
The 3rd control unit 508, can be for the access electric capacity of the Capacity control oscillating circuit according to finding.
The access electric capacity of the Capacity control oscillating circuit finding by foundation, conforms to the output frequency of oscillator and the actual working state of electronic equipment.
In embodiments of the present invention, oscillator can provide reference frequency for the radiating circuit of electronic equipment and the local oscillator of receiving circuit, in the method, under each electric capacity of the oscillating circuit access of oscillator, according to the mode of operation of electronic equipment, control the state of radiating circuit, power amplification circuit and receiving circuit, and under each mode of operation, the circuit of controlling under in running order is worked under different operating powers, and the utilization obtain manner corresponding with mode of operation obtains the first frequency under each operating power; According to the frequency parameter of first frequency and local oscillator, calculate the output frequency of oscillator, set up under each mode of operation, the corresponding relation of electric capacity, output frequency and operating power, thereby guarantee the electric capacity of the oscillator of setting up and the corresponding relation of output frequency conform to the actual working state of electronic equipment, and then reduce the frequency error of oscillator, improve the frequency performance of oscillator.
The invention also discloses a kind of electronic equipment, comprise the as above calibration control device of the described oscillator of arbitrary embodiment.
Below respectively install corresponding embodiment corresponding with the embodiment of method, specifically can be referring to embodiment of the method, in this not go into detail.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed device of embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part partly illustrates referring to method.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. the adjustment controlling means of an oscillator, it is characterized in that, be applied in electronic equipment, described electronic equipment comprises radiating circuit, the power amplification circuit being connected with described radiating circuit, receiving circuit, the communication unit being connected with described receiving circuit with described power amplification circuit respectively and the connected test cell of described communication unit, described oscillator is used to the local oscillator of described radiating circuit and described receiving circuit that reference frequency is provided, and the method comprises:
The oscillating circuit of controlling described oscillator accesses different electric capacity;
Under each electric capacity of described oscillating circuit access, according to the mode of operation of described electronic equipment, control the state of described radiating circuit, described power amplification circuit and described receiving circuit; The state of described radiating circuit, described power amplification circuit and described receiving circuit comprises operating state and operating state not;
Under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with described mode of operation obtains the first frequency under each operating power;
According to the frequency parameter of described first frequency and described local oscillator, calculate the output frequency of described oscillator;
Under each mode of operation, set up the corresponding relation of electric capacity, output frequency and operating power.
2. method according to claim 1, is characterized in that, the mode of operation of described electronic equipment comprises the first mode of operation, the second mode of operation and the 3rd mode of operation;
Under described the first mode of operation, described radiating circuit, described power amplification circuit and described receiving circuit are all in running order;
Under described the second mode of operation, described radiating circuit and described power amplification circuit are in running order, and described receiving circuit is in operating state not;
Under described the 3rd mode of operation, described radiating circuit and described power amplification circuit are in operating state not, and described receiving circuit is in running order.
3. method according to claim 2, it is characterized in that, when described electronic equipment is under the first mode of operation or the second mode of operation, described test cell is for testing the signal frequency of described power amplification circuit output, and the first frequency that the described foundation obtain manner corresponding with described mode of operation obtains under each operating power is specially:
Obtain the first frequency under each operating power that described test cell tests.
4. method according to claim 2, is characterized in that, at described electronic equipment, under the 3rd mode of operation, described test cell is for launching the signal of second frequency;
The first frequency that the described foundation obtain manner corresponding with described mode of operation obtains under each operating power is specially:
Obtain described receiving circuit and send to the signal of base band and the signal of the second frequency that described test cell is launched under each operating power;
According to sending to the frequency of signal of described base band and the first frequency that described second frequency calculates described local oscillator under each operating power.
5. method according to claim 1, is characterized in that, when described electronic equipment is in running order, described under each mode of operation, and the corresponding relation of setting up electric capacity, output frequency and operating power also comprises afterwards:
Detect the residing mode of operation of described electronic equipment and in running order under the operating power of circuit;
In corresponding relation under the residing mode of operation of described electronic equipment, search the electric capacity corresponding with described operating power;
Access electric capacity according to oscillating circuit described in the Capacity control finding.
6. the calibration control device of an oscillator, it is characterized in that, be applied in electronic equipment, described electronic equipment comprises radiating circuit, the power amplification circuit being connected with described radiating circuit, receiving circuit, the communication unit being connected with described receiving circuit with described power amplification circuit respectively and the connected test cell of described communication unit, described oscillator is used to the local oscillator of described radiating circuit and described receiving circuit that reference frequency is provided, and this device comprises:
The first control unit, accesses different electric capacity for controlling the oscillating circuit of described oscillator;
The second control unit, under each electric capacity in described oscillating circuit access, controls the state of described radiating circuit, described power amplification circuit and described receiving circuit according to the mode of operation of described electronic equipment; The state of described radiating circuit, described power amplification circuit and described receiving circuit comprises operating state and operating state not;
Control acquiring unit, under each mode of operation, control each circuit under in running order and work under different operating power, and the utilization obtain manner corresponding with described mode of operation obtains the first frequency under each operating power;
The first computing unit, calculates the output frequency of described oscillator for the frequency parameter according to described first frequency and described local oscillator;
First sets up unit, under each mode of operation, sets up the corresponding relation of electric capacity, output frequency and operating power.
7. device according to claim 6, is characterized in that, the mode of operation of described electronic equipment comprises the first mode of operation, the second mode of operation and the 3rd mode of operation;
Under described the first mode of operation, described radiating circuit, described power amplification circuit and described receiving circuit are all in running order;
Under described the second mode of operation, described radiating circuit and described power amplification circuit are in running order, and described receiving circuit is in operating state not;
Under described the 3rd mode of operation, described radiating circuit and described power amplification circuit are in operating state not, and described receiving circuit is in running order.
8. device according to claim 7, it is characterized in that, when described electronic equipment is under the first mode of operation or the second mode of operation, described test cell is for testing the signal frequency of described power amplification circuit output, described control acquiring unit specifically for: under each mode of operation, control each circuit under in running order and work under different operating power, and obtain the first frequency under each operating power that described test cell tests.
9. device according to claim 7, is characterized in that, at described electronic equipment, under the 3rd mode of operation, described test cell is for launching the signal of second frequency;
Described control acquiring unit comprises controls acquisition module and computing module;
Described control acquisition module is under each mode of operation, control each circuit under in running order and work under different operating power, and obtain described receiving circuit and send to the signal of base band and the signal of the second frequency that described test cell is launched under each operating power;
Described computing module is for according to sending to the frequency of signal of described base band and the first frequency that described second frequency calculates described local oscillator under each operating power.
10. device according to claim 6, is characterized in that, when described electronic equipment is in running order, also comprises:
The first detecting unit, for detection of the residing mode of operation of described electronic equipment and in running order under the operating power of circuit;
First searches unit, for the corresponding relation under the residing mode of operation of described electronic equipment, searches the electric capacity corresponding with described operating power;
The 3rd control unit, for the access electric capacity according to oscillating circuit described in the Capacity control finding.
11. 1 kinds of electronic equipments, is characterized in that, comprise the calibration control device of the oscillator as described in claim 6～10.
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| CN201410363736.5A CN104092460B (en) | 2014-07-28 | 2014-07-28 | Calibration control method and device for oscillator and electronic device |
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| CN104092460B (en) | 2017-02-15 |
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