CN209731218U - A kind of Zigbee module and electronic equipment - Google Patents
A kind of Zigbee module and electronic equipment Download PDFInfo
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- CN209731218U CN209731218U CN201921004143.4U CN201921004143U CN209731218U CN 209731218 U CN209731218 U CN 209731218U CN 201921004143 U CN201921004143 U CN 201921004143U CN 209731218 U CN209731218 U CN 209731218U
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Abstract
The embodiment of the present application provides a kind of Zigbee module and electronic equipment, is related to the communications field.The Zigbee module includes: main control chip, for handling the data-signal received, obtains transmitting signal；Filter circuit is connected with the main control chip, and for being filtered to the transmitting signal, obtains filtered transmitting signal, the frequency of the filtered transmitting signal is maintained in default range.The transmission signal quality of the Zigbee module is preferable, and power loss is smaller, and transmission range is big.
Description
Technical field
This application involves the communications fields, in particular to a kind of Zigbee module and electronic equipment.
Background technique
Zigbee is a kind of low-power consumption based on IEEE 802.15.4, low data rate, low cost, the nothing of low complex degree
Line network technology.Main application fields include that data acquisition, wireless industrial control, consumer electronics device, automobile are automatic
Change, the occasions such as family and building automatic, medical equipment control, remote network control.
Zigbee module currently on the market generally comprises: master chip, without source crystal oscillator, power amplifier chip or balance with it is non-
Conversion circuit etc. is balanced, filter circuit is arranged in existing Zigbee module generally between power module and master chip, to input
Signal is filtered, and the signal quality for improving Zigbee module output still since circuit components are more, finally exports
In transmitting signal or there can be interference signal, therefore emit the poor signal quality of signal, power loss is big, and transmission range is short.
Utility model content
The application provides a kind of Zigbee module and electronic equipment, to improve the transmitting letter of Zigbee module in the prior art
Number short technical problem of transmission range.
Embodiments herein is accomplished in that
In a first aspect, the embodiment of the present application provides a kind of Zigbee module, comprising:
Main control chip obtains transmitting signal for handling the data-signal received；Filter circuit, and it is described
Main control chip connection, for being filtered to the transmitting signal, obtains filtered transmitting signal, the filtered transmitting
The frequency of signal is maintained in default range.
In the embodiment of the present application, Zigbee module be provided with transmitting signal filter circuit, can to transmitting signal into
Row filtering.It compared with the prior art is filtered in front end, is filtered after main control chip, the hair being filtered
Penetrating signal can generally directly transmit away, and being equivalent to filtered transmitting signal is final transmitting signal, therefore emit signal
Signal quality it is preferable, power loss is smaller, so promoted transmission range.
As a kind of possible implementation, the Zigbee module further includes power amplifier chip, the power amplification
Chip is connect with the main control chip and the filter circuit respectively, and the filter circuit passes through the power amplifier chip and institute
Main control chip connection is stated, the power amplifier chip is used to export again after the power amplification of the transmitting signal to the filtering
Circuit.
In the embodiment of the present application, it is exported again after transmitting signal being carried out power amplification to filter circuit, plays signal and put
Big effect.
As a kind of possible implementation, the filter circuit includes: the first inductance, the second inductance, third inductance,
One capacitor, the second capacitor, third capacitor, the 4th capacitor；
One end of first inductance connects the power amplifier chip, the other end connection of first inductance described the
One end of one capacitor；One end of the first capacitor is also connected with one end of second capacitor, the other end of the first capacitor
Connect the other end of second capacitor；One end of second inductance connects one end of second capacitor, second electricity
The other end of sense connects one end of the third capacitor；The other end of the third capacitor connects the another of second capacitor
End；One end of the third inductance connects the other end of second inductance, the other end connection of the third inductance described the
One end of four capacitors, the other end of the 4th capacitor connect the other end of the third capacitor, one end of the 5th capacitor
The other end of the third inductance is connected, the other end of the 5th capacitor is output end.
In the embodiment of the present application, pass through the first inductance, the second inductance, third inductance, first capacitor, the second capacitor,
Three capacitors, the 4th capacitor and the 5th capacitor form a typical second order Butterworth lowpass filters, relative to existing skill
Art is in such a way that multiple filters are combined filtering, and in the case where realizing identical filter effect, circuit structure is simpler
It is single, it is easy to accomplish, while the element of circuit is less, the probability for fault occur is smaller, and the stability of circuit is also more preferable.
As a kind of possible implementation, the first inductance size is 15nH, and the second inductance size is
1.1nH, the third inductance size are 2.0nH, and the first capacitor and the third capacitance size are 2.2pF, the described 4th
Capacitance size is 1.2pF, and the 5th capacitance size is 18pF.
In the embodiment of the present application, the filter effect realized using each component parameters in this kind of implementation is more preferable,
And then it can effectively improve signal quality.
As a kind of possible implementation, first inductance is micro wire around inductance, second inductance and described
The quality factor of third inductance are greater than 60；The first capacitor, the third capacitor, the 4th capacitor and the 5th electricity
Appearance is ceramic disc capacitor.
In the embodiment of the present application, the component type of use is fairly simple, positive means type, it is easy to accomplish,
And cost is relatively low.
As a kind of possible implementation, on circuit boards, the substrate of the circuit board is thick for the filter circuit setting
Angle value is between 0.25-0.26mm.
In the embodiment of the present application, a circuit board is separately provided in filter circuit, and interference, and electricity are not generated with other circuits
The substrate thickness value of road plate is smaller, can improve the filter effect of filter circuit, further promotion signal quality.
As a kind of possible implementation, first inductance, second inductance, the first capacitor, described
Component placement on the circuit board of two capacitors and the third capacitor forms straight line, the third inductance, described
Component placement of 4th capacitor on the circuit board forms straight line, so that the path that flows through of the transmitting signal forms one
Straight line.
In the embodiment of the present application, by the layout of each element, the path that flows through for emitting signal can be made to form one
Straight line avoids signal bifurcated, it is possible to reduce because of the standing wave phenomena that signal reflex generates, avoids the loss of output power.
As a kind of possible implementation, the main control chip is CC2530, and the power amplifier chip is CC2592
Chip.
In the embodiment of the present application, using CC2530 chip and CC2592 chip, cheap, cost is relatively low.
As a kind of possible implementation, the preset range are as follows: 16 channels between 2.405GHz-2.480GHz
On.
In the embodiment of the present application, by emitting signal filter circuit, the frequency for emitting signal is made to be maintained at 2.405GHz-
On 16 channels between 2.480GHz, the stability of transmitting signal is improved.
Second aspect, the embodiment of the present application provide a kind of electronic equipment, and the electronic equipment includes apparatus body, and setting exists
The Zigbee mould as described in first aspect and first aspect any one possible implementation in the apparatus body
Block.
In the embodiment of the present application, when the electronic equipment is carried out wireless communication by Zigbee module, Zigbee module
The transmission signal quality of output is preferable, and power loss is smaller, and then the transmission range of promotion signal.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application will make below to required in the embodiment of the present application
Attached drawing is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore should not be seen
Work is the restriction to range, for those of ordinary skill in the art, without creative efforts, can be with
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the functional block diagram of Zigbee module first embodiment provided by the embodiments of the present application.
Fig. 2 is the functional block diagram of Zigbee module second embodiment provided by the embodiments of the present application.
Fig. 3 is filter circuit figure provided by the embodiments of the present application.
Fig. 4 is main control chip partial circuit diagram provided by the embodiments of the present application.
Fig. 5 is power amplifier chip provided by the embodiments of the present application and filter circuit partial circuit diagram.
Fig. 6 (a) is radiofrequency signal phase offset schematic diagram in the prior art.
Fig. 6 (b) is the radiofrequency signal phase offset schematic diagram of the embodiment of the present application provided by the embodiments of the present application.
Fig. 6 (c) is the radiofrequency signal phase offset schematic diagram of perfect condition provided by the embodiments of the present application.
Fig. 7 is PCB circuit board schematic diagram provided by the embodiments of the present application.
Icon: 100-Zigbee module；101- main control chip；102- filter circuit；103- power amplifier chip.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described.
Fig. 1 is please referred to, is 100 illustrative view of functional configuration of Zigbee module provided by the embodiments of the present application, the Zigbee mould
Block 100 includes main control chip 101 and filter circuit 102, and main control chip 101 and filter circuit 102 connect.
Zigbee module 100 is used as a kind of communication module, can receive data and sends data, can also carry out to data
Processing, it is complete available for making the data-signal finally sent.Core of the main control chip 101 as Zigbee module 100
Component handles the data-signal received, obtains transmitting signal.The hair that filter circuit 102 exports main control chip 101
It penetrates signal to be filtered, obtains filtered transmitting signal, the frequency of filtered transmitting signal is maintained at preset model
In enclosing.Filtered transmitting signal is sent through Zigbee module 100 again.
Wherein, the signal that main control chip 101 receives can be by serial ports or I/O port transmission come data believe
Number, main control chip 101 may include: the processing such as data encoding, channel coding/decoding, modulation /demodulation to the processing of data-signal.
The signal of the processing of main control chip 101 is first passed through, then is filtered by filter circuit 102, is carried out after main control chip 101
Filtering processing, the transmitting signal being filtered can generally directly transmit away, and it is final for being equivalent to filtered transmitting signal
Transmitting signal, therefore emit signal signal quality it is preferable, power loss is smaller, so promoted transmission range.
In the embodiment of the present application, emitting the preset range that the frequency of signal is maintained may is that 2.405GHz-
On 16 channels between 2.480GHz.The preset range is related to the transmitting power of signal, and the power for emitting signal is maintained at
When within the scope of one, the frequency for emitting signal is also maintained in a corresponding range.That is frequency hopping working method: antenna gain <
When 10dBi: data signal power is maintained at≤20dBm/MHz；When antenna gain >=10dBi: data signal power is maintained at≤
27dBm/MHz.Wherein it is possible to understand, the transmitting antenna of antenna, that is, Zigbee module 100, transmitting signal is sent out by antenna
It sees off.
It next referring to figure 2., is the functional block diagram of Zigbee module 100 provided by the embodiments of the present application, as one
Kind embodiment, as shown in Fig. 2, further including power amplifier chip 103 in Zigbee module 100, power amplifier chip 103 is distinguished
It is connect with main control chip 101 and filter circuit 102, filter circuit 102 is connected by power amplifier chip 103 and main control chip 101
It connects, power amplifier chip 103 after the power amplification for emitting signal for will export again to filter circuit 102.
It is understood that the transmitting signal exported by Zigbee module 100 is usually therefore, first will by amplification
Transmitting signal is exported again after carrying out power amplification to filter circuit 102, can play the role of signal amplification.
It next referring to figure 3., is a kind of filter circuit 102 provided by the embodiments of the present application, as shown in figure 3, filtered electrical
Road 102 includes inductance L2, inductance L3, inductance L4, capacitor C9, capacitor C10, capacitor C19, capacitor C20 and capacitor C21.Inductance
The one end L2 connects power amplifier chip 103, one end of the other end connection capacitor C9 of inductance L2；One end of capacitor C9 is also connected with electricity
Hold one end of C10, the other end of the other end connection capacitor C10 of capacitor C9；One end of one end connection capacitor C10 of inductance L3,
One end of the other end connection capacitor C19 of inductance L3；The other end of the other end connection capacitor C10 of capacitor C19；The one of inductance L4
The other end of end connection inductance L3, one end of the other end connection capacitor C20 of inductance L4, the other end of capacitor C20 connect capacitor
The other end of C19, the other end of one end connection inductance L4 of capacitor C21, the other end of capacitor C21 is output end.
The filter circuit 102 belongs to a typical second order Butterworth lowpass wave circuit, using inductance and capacitance group
Obtained filter circuit is closed, the component parameters of inductance and capacitor are easier to adjust in circuit, and the structure of circuit is also simpler
It is single, if there is the appearance of situations such as component wear, it is easily changed and repairs.
In addition to filter circuit 102 shown in Fig. 3, which can also be first-order filtering circuit, that is, not need figure
L3 and C19 shown in 3 or L4 and C20, other reservations, are equivalent to the filtering that the filtering of second level is changed to level-one.
In the embodiment of the present application, main control chip 101 can be CC2530 chip, and CC2530 chip is a kind of radio frequency core
Piece belongs to 8051 processors of standard.Power amplifier chip 103 can be CC2592 chip, and CC2592 chip is a kind of radio frequency
Expander, for the 2.4GHz wireless signal of low-power and low pressure.Certainly, main control chip 101 and power amplifier chip 103 be not only
It is limited to may also is that CC2430 chip for both chips, such as main control chip 101；Power amplifier chip 103 may also is that
CC2591 chip.
Cheap using CC2530 chip and CC2592 chip, cost is relatively low, and the performance of this two chip is good, matches
It closes using the performance boost that can make Zigbee module 100.
It next referring to figure 4. and Fig. 5, is the physical circuit figure of Zigbee module 100 provided by the embodiments of the present application, figure
4 be main control chip 101 (CC2530) and its connection circuit of peripheral circuit, and Fig. 5 is power amplifier chip 103 (CC2592), filters
The connection circuit of wave circuit 102 and peripheral circuit.As shown in figure 4, CC2530 is provided with multiple functional pins, some functions are drawn
Foot is connect with peripheral circuit, and some functional pins are as serial communication pin or external input output pin, wherein pin 9
With the transmitting signal of the output of pin 11 after treatment.In conjunction with shown in Fig. 5, CC2592 is also equipped with multiple functional pins, In
In Fig. 5, CC2592 there are three pin be input pin, all connect with CC2530, wherein pin 5 and pin 6 input be through
CC2530 treated transmitting signal.Pin 13,14,15 and pin 10 are connect with the input terminal of filter circuit 102, in Fig. 5
102 part of filter circuit include inductance L2, capacitor C9, capacitor C10, inductance L3, capacitor C19, inductance L4, capacitor C20, capacitor
C21。
In filter circuit 102 shown in fig. 5, the parameter of each element can be first passed through after theoretical formula calculated, then
It is finely adjusted.The embodiment of the present application provides a kind of optional calculation: formula 1:Formula 2:Formula 3:And formula 4:Wherein, fcIt represents and cuts
Only frequency, design parameter 2483.5MHz；ZoImpedance is represented, design parameter is 50 Ω.Pass through formula 1-4 and fcAnd ZoSet
The theoretical value that meter parameter can calculate C9 and C19 is 2.56pF, L3+L4 6.4nH, C20 1.28pF.L2 is filter circuit
Direct current biasing is provided, parameter is related to size of devices with power.C21 is as capacitance, for preventing direct current signal from entering day
Line leads to short circuit.In the embodiment of the present application, it is theoretical from the point of view of the value of C21 causes resistance shift from capacitance
On, capacitance is bigger, and impedance can be closer to 0 Ω, and resistance shift degree is smaller.The capacitor of general 18pF or so, resistance shift
In 1 Ω or so, when using the capacitor of 18pF as capacitance, impedance is still 50 Ω, keeps its whole without additional adjust again
Body impedance is restored to 50 Ω, and therefore, the C21 in the embodiment of the present application chooses the capacitor of 18pF.In addition to causing to hinder from capacitance
, can also be from material from the point of view of anti-offset, insertion loss etc. considers, the big capacitor insertion loss of capacity compares
It is small.
Since in practical applications, filter circuit 102 is arranged at circuit board (PCB, Printed Circuit Board)
On, pcb board can generate parasitic capacitance and parasitic inductance, it is therefore desirable to be finely adjusted to component parameters.
As an alternative embodiment, being finely adjusted by circuit simulation to component parameters.By Fig. 4 and Fig. 5 institute
The circuit shown is drawn on simulation software (such as multisim, Proteus etc.), first by filter circuit 102 after drawing
Each component parameters are set as theoretical value, then the performance of passage capacity test parameter test Zigbee module 100, according to test
Performance component parameters are constantly adjusted, when obtaining suitable performance parameter, used device parameter values are as final
Determining device parameter values.
It is of course also possible to which Zigbee module 100 is made into material object, wherein each component parameters in filter circuit 102 are adopted
With the parameter value close with computational theory value of equivalence element Parameter specifications, then according to test side identical in simulation software
Method tests performance, replaces the element of different component parameters, further according to test result adjustment to obtain suitable element
Parameter value.
In the embodiment of the present application, performance test parameter may include: Zigbee module 100 transmission power and error to
Discharge amplitude.
The embodiment of the present application provides a kind of component parameters value, so that the performance of Zigbee module 100 greatly promotes, L2 is
15nH, C9 2.2pF, C10 do not assemble, L3 1.1nH, C19 2.2pF, L4 2.0nH, C20 1.2pF, C21 18pF.
Wherein, inductance L2 is micro wire around inductance, and the quality factor of inductance L3 and inductance L4 are greater than 100 (high Q value inductances)；Capacitor C9,
Capacitor C19, capacitor C20 and capacitor C21 are ceramic disc capacitor.Wherein, C10 serves as the effect of reserved capacitor in debugging, from
Cost angle considers, in specific assembly, can not assemble.
Under component parameters value provided by the embodiments of the present application, the transmission power of module is 20.04dBm/MHz, error
Vector magnitude: 4.73%.Existing Zigbee module transmission power is general are as follows: 18.25dBm/MHz；Error vector magnitude are as follows:
12.24%.As it can be seen that being compared with the prior art, the performance of Zigbee module 100 is greatly promoted.
When testing performance test parameter, the phase that can also test the radiofrequency signal of Zigbee module 100 is inclined
It moves, next please refers to Fig. 6 (a), Fig. 6 (b) and Fig. 6 (c), Fig. 6 (a) represents the phase offset schematic diagram of the prior art；Fig. 6
(b) the phase offset schematic diagram of the embodiment of the present application is represented；Fig. 6 (c) represents phase offset schematic diagram ideally.Its
In, abscissa I indicates same phase, and ordinate Q indicates orthogonal (90 degree of phases).It can body by Fig. 6 (a), Fig. 6 (b) and Fig. 6 (c)
Existing radiofrequency signal is modulated/demodulation after phase offset.It is appreciated that the stain part four direction more vertically and horizontally in figure
It concentrates, effect is better.As it can be seen that the phase offset of the embodiment of the present application is closer with phase offset ideally, Zigbee
The performance of module 100 is better than the module performance of the prior art.
When filter circuit 102 is made into circuit board in kind, in order to keep the volume of circuit board smaller, facilitate whole replacement
And later period maintenance, PCB circuit board can use the circuit board with stamp hole.In addition, in addition to using the circuit board with stamp hole, electricity
The stepped construction of road plate can also be designed, and the stepped construction of circuit board includes: coating, component, substrate, four kinds of plane
Type.In the embodiment of the present application, the substrate thickness of the circuit board where filter circuit 102 can between 0.25-0.26mm,
Substrate thickness value can be such as 0.25mm, 0.254mm, 0.256mm, 0.26mm etc..Component and the thickness of plane can be
0.03429mm.The circuit design of the embodiment of the present application be circuit board when, be not covered with layer, thus coating with a thickness of 0.This
Outside, the dielectric constant of component can be 1, and the dielectric constant of substrate and plane can be 4.3.
In the embodiment of the present application, in addition to considering influence of the component parameters to signal quality in filter circuit 102, it is also contemplated that
Influence of the component placement to signal quality on to PCB circuit board.Next Fig. 7 is please referred to, is provided by the embodiments of the present application
Component placement structure chart in PCB circuit board, as shown in fig. 7, C9, C10, L2, L3 and C19 are formed in the PCB circuit board
Straight line, L4, C20 and C21 form straight line, so that the path that flows through of transmitting signal is also straight line.Transmitting letter
Number the path that flows through be straight line, can be avoided signal bifurcated, reduce the standing wave phenomena generated by signal reflex, avoid exporting
Power loss.In addition, filter circuit 102 is connect with power amplifier chip 103, therefore can be by power amplifier chip 103
And it includes peripheral circuit and filter circuit 102 design on same circuit board as shown in Figure 7.
The embodiment of the present application also provides a kind of electronic equipment, which includes apparatus body, is arranged in apparatus body
Interior Zigbee module 100.The electronic equipment can be mobile phone, computer, plate etc..
Certainly, can also there are processor, memory etc. in apparatus body, Zigbee module 100 can be used as the electronics
The wireless communication module for sending and receiving data of equipment.For example, Zigbee module 100 receive through processor treated number
According to, the data are further processed again using main control chip 101, be sent to after processing power amplifier chip 103 progress
Power amplification, then power amplifier chip 103 exports again is filtered to filter circuit 102, final transmission process processing,
Amplification, filtered data-signal, the object of transmission can be other electronic equipments.The detailed process being directed to is aforementioned
It has been discussed in detail in embodiment, has been not repeated to introduce herein.
Wherein, memory can include but is not limited to random access memory (Random Access Memory, RAM),
Read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Processor can be a kind of IC chip, have signal handling capacity.Above-mentioned processor can be general place
Manage device, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc..
In the embodiment of the present application, when the electronic equipment is carried out wireless communication by Zigbee module, Zigbee module
The transmission signal quality of output is preferable, and power loss is smaller, and the transmission range of signal is promoted, and is conducive to electronic equipment and carries out wirelessly
Communication.
The above description is only an example of the present application, the protection scope being not intended to limit this application, for ability
For the technical staff in domain, various changes and changes are possible in this application.Within the spirit and principles of this application, made
Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this application.It should also be noted that similar label and
Letter indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
In do not need that it is further defined and explained.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of Zigbee module characterized by comprising
Main control chip obtains transmitting signal for handling the data-signal received；
Filter circuit is connected with the main control chip, and for being filtered to the transmitting signal, obtains filtered transmitting letter
Number, the frequency of the filtered transmitting signal is maintained in default range.
2. Zigbee module according to claim 1, which is characterized in that the Zigbee module further includes power amplification core
Piece, the power amplifier chip are connect with the main control chip and the filter circuit respectively, and the filter circuit passes through described
Power amplifier chip is connected with the main control chip, and the power amplifier chip is used for will be after the power amplification of the transmitting signal
It is exported again to the filter circuit.
3. Zigbee module according to claim 2, which is characterized in that the filter circuit includes: the first inductance, second
Inductance, third inductance, first capacitor, the second capacitor, third capacitor, the 4th capacitor, the 5th capacitor；
One end of first inductance connects the power amplifier chip, the other end connection of first inductance first electricity
One end of appearance；One end of the first capacitor is also connected with one end of second capacitor, the other end connection of the first capacitor
The other end of second capacitor；One end of second inductance connects one end of second capacitor, second inductance
The other end connects one end of the third capacitor；The other end of the third capacitor connects the other end of second capacitor；Institute
The one end for stating third inductance connects the other end of second inductance, and the other end of the third inductance connects the 4th capacitor
One end, the other end of the 4th capacitor connects the other end of the third capacitor, and one end of the 5th capacitor connects institute
The other end of third inductance is stated, the other end of the 5th capacitor is output end.
4. Zigbee module according to claim 3, which is characterized in that the first inductance size is 15nH, described the
Two inductance sizes are 1.1nH, and the third inductance size is 2.0nH, and the first capacitor and the third capacitance size are
2.2pF, the 4th capacitance size are 1.2pF, and the 5th capacitance size is 18pF.
5. Zigbee module according to claim 4, which is characterized in that first inductance is micro wire around inductance, institute
The quality factor for stating the second inductance and the third inductance are greater than 60；The first capacitor, the third capacitor, the 4th electricity
Hold and the 5th capacitor is ceramic disc capacitor.
6. Zigbee module according to claim 3, which is characterized in that the filter circuit is arranged on circuit boards, institute
The substrate thickness value of circuit board is stated between 0.25-0.26mm.
7. Zigbee module according to claim 6, which is characterized in that first inductance, second inductance, described
The component placement of first capacitor, second capacitor and the third capacitor on the circuit board forms straight line, institute
It states the component placement of third inductance, the 4th capacitor and the 5th capacitor on the circuit board and forms straight line,
So that the path that flows through of the transmitting signal forms straight line.
8. Zigbee module according to claim 2, which is characterized in that the main control chip is CC2530 chip, described
Power amplifier chip is CC2592 chip.
9. Zigbee module according to claim 8, which is characterized in that the preset range are as follows: 2.405GHz-
On 16 channels between 2.480GHz.
10. a kind of electronic equipment characterized by comprising
Apparatus body, and be arranged in the apparatus body such as the described in any item Zigbee modules of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004143.4U CN209731218U (en) | 2019-06-27 | 2019-06-27 | A kind of Zigbee module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921004143.4U CN209731218U (en) | 2019-06-27 | 2019-06-27 | A kind of Zigbee module and electronic equipment |
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| CN209731218U true CN209731218U (en) | 2019-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212931A (en) * | 2019-06-27 | 2019-09-06 | 广东安居宝数码科技股份有限公司 | A kind of Zigbee module and electronic equipment |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212931A (en) * | 2019-06-27 | 2019-09-06 | 广东安居宝数码科技股份有限公司 | A kind of Zigbee module and electronic equipment |
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