CN204795062U - Module and receiver circuit are handled in FMAM radio reception - Google Patents
Module and receiver circuit are handled in FMAM radio reception Download PDFInfo
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- CN204795062U CN204795062U CN201520372283.2U CN201520372283U CN204795062U CN 204795062 U CN204795062 U CN 204795062U CN 201520372283 U CN201520372283 U CN 201520372283U CN 204795062 U CN204795062 U CN 204795062U
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- signal
- radio chip
- radio reception
- radio
- modulation filter
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Abstract
The utility model discloses a module is handled in FMAM radio reception, the module is handled including the RF signal input part who is used for receiving the RF signal to this FMAM radio reception, a frequency modulation wave filter for being directed at the RF signal carries out frequency modulation filtering to be handled, an amplitude modulation wave filter for being directed at the RF signal carries out amplitude modulation filtering to be handled, a radio reception chip for exchanging the RF signal conversion after wave filter and amplitude modulation wave filter are handled frequently is audio signal and exports this audio signal, a clock circuit for being the radio reception chip provides the work clock, and be used for providing operating voltage's power input end for the radio reception chip, the radio reception chip is including being used for carrying out data communication's I2C interface and the audio output end that is used for the output audio signal with outside MCU. The utility model discloses greatly reduce designer's debugging work load, shortened the product development cycle, and simultaneously, the utility model discloses compact structure still has, occupation space is little, application scope is wide and safe and reliable's advantage.
Description
Technical field
The utility model relates to receiver technics field, particularly a kind of FM/AM radio reception process module and receiver circuit.
Background technology
Also do not use the Tiger2 series radio chip of NXP company or the radio module of LITHIO series radio chip composition in the market specially.In prior art, designer is when using a certain radio chip design broadcast receiver product, circuit theory diagrams and PCB can only be redesigned for each product, thus make designer need the radio reception effect spending a large amount of debug times that product just can be made to reach good, thus cause product development cycle longer.
Utility model content
Main purpose of the present utility model is to provide and a kind ofly greatly can reduces debugging work load and the FM/AM radio reception process module of the little modularized design that takes up room.
For achieving the above object, the utility model provides a kind of FM/AM radio reception process module, described FM/AM radio reception process module comprises the RF signal input part for receiving RF signal, for carrying out the frequency modulation filter of frequency modulation filtering process to described RF signal, for carrying out the amplitude modulation filter of amplitude modulation filtering process to described RF signal, for being converted to audio signal and the radio chip described audio signal exported to the RF signal after described frequency modulation filter and described amplitude modulation filter process, for providing the clock circuit of work clock for described radio chip, and for providing the power input of operating voltage for described radio chip, described radio chip comprises for carrying out the I of data communication with outside MCU
2c interface and the audio output for exporting described audio signal, wherein,
Described frequency modulation filter is connected between described RF signal input part and a RF signal input part of described radio chip; Described amplitude modulation filter is connected between described RF signal input part and the 2nd RF signal input part of described radio chip; Described clock circuit is connected with the clock signal input terminal of described radio chip; The described I of described radio chip
2c interface is connected with outside MCU; Described power input is connected with the operating voltage input of described radio chip.
Preferably, described frequency modulation filter, amplitude modulation filter, radio chip and described clock circuit are all located on same pcb board.
Preferably, described pcb board is also provided with the radome for shielding external signal described frequency modulation filter, amplitude modulation filter, radio chip and described clock circuit being carried out to signal disturbing; Described radome is fixedly connected with described pcb board.
Preferably, the I of described RF signal input part, power input, described radio chip
2the audio output of C interface and described radio chip is all with contact pin mode and outside connecting communication.
Preferably, described radio chip is Tiger2 series radio chip or the LITHIO series radio chip of NXP company.
Preferably, the voltage of described power input is 3.3V.
In addition, for achieving the above object, the utility model also provides a kind of receiver circuit, described receiver circuit comprises FM/AM radio reception process module, described FM/AM radio reception process module comprises the RF signal input part for receiving RF signal, for carrying out the frequency modulation filter of frequency modulation filtering process to described RF signal, for carrying out the amplitude modulation filter of amplitude modulation filtering process to described RF signal, for being converted to audio signal and the radio chip described audio signal exported to the RF signal after described frequency modulation filter and described amplitude modulation filter process, for providing the clock circuit of work clock for described radio chip, and for providing the power input of operating voltage for described radio chip, described radio chip comprises for carrying out the I of data communication with outside MCU
2c interface and the audio output for exporting described audio signal, wherein,
Described frequency modulation filter is connected between described RF signal input part and a RF signal input part of described radio chip; Described amplitude modulation filter is connected between described RF signal input part and the 2nd RF signal input part of described radio chip; Described clock circuit is connected with the clock signal input terminal of described radio chip; The described I of described radio chip
2c interface is connected with outside MCU; Described power input is connected with the operating voltage input of described radio chip.
The FM/AM radio reception process module that the utility model provides, comprise the RF signal input part for receiving RF signal, for described RF signal is carried out frequency modulation filtering process frequency modulation filter, for described RF signal is carried out amplitude modulation filtering process amplitude modulation filter, for being converted to audio signal to the RF signal after described frequency modulation filter and described amplitude modulation filter process and the radio chip that described audio signal is exported, being used for providing the clock circuit of work clock for described radio chip and being used for for described radio chip provides the power input of operating voltage; Described radio chip comprises for carrying out the I of data communication with outside MCU
2c interface and the audio output for exporting described audio signal; Described frequency modulation filter is connected between described RF signal input part and a RF signal input part of described radio chip; Described amplitude modulation filter is connected between described RF signal input part and the 2nd RF signal input part of described radio chip; Described clock circuit is connected with the clock signal input terminal of described radio chip; The described I of described radio chip
2c interface is connected with outside MCU; Described power input is connected with the operating voltage input of described radio chip.The utility model FM/AM radio reception process module adopts modularized design, the main circuit of radio reception is integrated on the little pcb board of same, thus make the utility model FM/AM radio reception process module only need little peripheral components, good radio reception effect can be reached, and, greatly reduce the debugging work load of designer, shorten product development cycle; Meanwhile, the utility model FM/AM radio reception process module also has compact conformation, take up room little, applied widely and safe and reliable advantage.
Accompanying drawing explanation
Fig. 1 is the circuit modular structure schematic diagram of the utility model FM/AM radio reception process module one embodiment;
Fig. 2 is the external structure schematic diagram of the utility model FM/AM radio reception process module.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of FM/AM radio reception process module.
With reference to the circuit modular structure schematic diagram that Fig. 1, Fig. 1 are the utility model FM/AM radio reception process module one embodiments.
In the present embodiment, this FM/AM radio reception process module comprises RF signal input part 101, frequency modulation filter 102, amplitude modulation filter 103, radio chip 104, clock circuit 105 and power input 106.Wherein, described radio chip 104 comprises for carrying out the I of data communication with outside MCU (not shown)
2c interface 1041 and the audio output 1042 for output audio signal, the I of described radio chip 104
2c interface 1041 comprises clock line SCL and data wire SDA.The audio output 1042 of described radio chip 104 comprises left audio output L_OUT and right audio channel output R_OUT.
Particularly, described RF signal input part 101, for receiving external RF signals;
Described frequency modulation filter 102, the RF signal for receiving described RF signal input part 101 carries out frequency modulation filtering process;
Described amplitude modulation filter 103, the RF signal for receiving described RF signal input part 101 carries out amplitude modulation filtering process;
Described radio chip 104, for being converted to audio signal to the RF signal after described frequency modulation filter 102 and the process of described amplitude modulation filter 103 and described audio signal being exported from described audio output 1042;
Described clock circuit 105, for providing work clock for described radio chip 104;
Described power input 106, for providing operating voltage for described radio chip 104.
In the present embodiment, described frequency modulation filter 102 is connected between described RF signal input part 101 and a RF signal input part of described radio chip 104; Described amplitude modulation filter 103 is connected between described RF signal input part 101 and the 2nd RF signal input part of described radio chip 104; Described clock circuit 105 is connected with the clock signal input terminal of described radio chip 104; The described I of described radio chip 104
2c interface 1041 is connected with outside MCU (not shown); Described power input 106 is connected with the operating voltage input of described radio chip 104.
In the present embodiment, described radio chip 104 is Tiger2 series radio chip or the LITHIO series radio chip of NXP company.The model of described radio chip 104 can be TEA685X, also can be TEF668X.In the present embodiment, the voltage of described power input 106 is 3.3V.
Fig. 2 is the external structure schematic diagram of the utility model FM/AM radio reception process module.
See figures.1.and.2 in the lump, the present embodiment FM/AM radio reception process module, described frequency modulation filter 102, amplitude modulation filter 103, radio chip 104 and described clock circuit 105 in Fig. 1 are all located on the pcb board 201 in Fig. 2.
Further, the present embodiment is also provided with the radome 202 for shielding external signal described frequency modulation filter 102, amplitude modulation filter 103, radio chip 104 and the described clock circuit 105 on pcb board 201 being carried out to signal disturbing on described pcb board 201; Described radome 202 is fixedly connected with described pcb board 201.The present embodiment FM/AM radio reception process module owing to being provided with described radome 202, thus has the high advantage of reliability.
Further, the I of described RF signal input part 101, power input 106, described radio chip 104
2the left audio output L_OUT of the clock line SCL of C interface 1041 and the audio output 1042 of data wire SDA and described radio chip 104 and right audio channel output R_OUT is all with the mode of contact pin 203 and outside connecting communication.
Particularly, in the present embodiment, described contact pin 203 comprises that left audio exports contact pin 2031 (this contact pin is connected with the left audio output L_OUT of radio chip 104 described in Fig. 1), right audio channel exports contact pin 2032 (this contact pin is connected with the right audio channel output R_OUT of radio chip 104 described in Fig. 1), power supply inputs contact pin 2033 (this contact pin is connected with power input 106 described in Fig. 1), the clock line contact pin 2034 (I of radio chip 104 described in this contact pin and Fig. 1
2the clock line of C interface connects), the data wire contact pin 2035 (I of radio chip 104 described in this contact pin and Fig. 1
2the data wire of C interface connects), RF signal input contact pin 2036 (this contact pin is connected with the signal input part of RF described in Fig. 1 101), six contact pins be left are ground wire contact pin.
The FM/AM radio reception process module that the present embodiment provides, comprise the RF signal input part for receiving RF signal, for described RF signal is carried out frequency modulation filtering process frequency modulation filter, for described RF signal is carried out amplitude modulation filtering process amplitude modulation filter, for being converted to audio signal to the RF signal after described frequency modulation filter and described amplitude modulation filter process and the radio chip that described audio signal is exported, being used for providing the clock circuit of work clock for described radio chip and being used for for described radio chip provides the power input of operating voltage; Described radio chip comprises for carrying out the I of data communication with outside MCU
2c interface and the audio output for exporting described audio signal; Described frequency modulation filter is connected between described RF signal input part and a RF signal input part of described radio chip; Described amplitude modulation filter is connected between described RF signal input part and the 2nd RF signal input part of described radio chip; Described clock circuit is connected with the clock signal input terminal of described radio chip; The described I of described radio chip
2c interface is connected with outside MCU; Described power input is connected with the operating voltage input of described radio chip.The present embodiment FM/AM radio reception process module adopts modularized design, the main circuit of radio reception is integrated on the little pcb board of same, thus make embodiment F M/AM radio reception process module only need little peripheral components, good radio reception effect can be reached, and, greatly reduce the debugging work load of designer, shorten product development cycle; Meanwhile, the present embodiment FM/AM radio reception process module also has compact conformation, take up room little, applied widely and safe and reliable advantage.
The utility model also provides a kind of receiver circuit, and this receiver circuit comprises FM/AM radio reception process module, and the structure of this FM/AM radio reception process module can refer to above-described embodiment, does not repeat them here.Naturally, the receiver circuit due to the present embodiment have employed the technical scheme of above-mentioned FM/AM radio reception process module, and therefore this receiver circuit has all beneficial effects of above-mentioned FM/AM radio reception process module.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a FM/AM radio reception process module, it is characterized in that, comprise the RF signal input part for receiving RF signal, for described RF signal is carried out frequency modulation filtering process frequency modulation filter, for described RF signal is carried out amplitude modulation filtering process amplitude modulation filter, for being converted to audio signal to the RF signal after described frequency modulation filter and described amplitude modulation filter process and the radio chip that described audio signal is exported, being used for providing the clock circuit of work clock for described radio chip and being used for for described radio chip provides the power input of operating voltage; Described radio chip comprises for carrying out the I of data communication with outside MCU
2c interface and the audio output for exporting described audio signal; Wherein,
Described frequency modulation filter is connected between described RF signal input part and a RF signal input part of described radio chip; Described amplitude modulation filter is connected between described RF signal input part and the 2nd RF signal input part of described radio chip; Described clock circuit is connected with the clock signal input terminal of described radio chip; The described I of described radio chip
2c interface is connected with outside MCU; Described power input is connected with the operating voltage input of described radio chip.
2. FM/AM radio reception process module as claimed in claim 1, it is characterized in that, described frequency modulation filter, amplitude modulation filter, radio chip and described clock circuit are all located on same pcb board.
3. FM/AM radio reception process module as claimed in claim 2, is characterized in that, described pcb board is also provided with the radome for shielding external signal described frequency modulation filter, amplitude modulation filter, radio chip and described clock circuit being carried out to signal disturbing; Described radome is fixedly connected with described pcb board.
4. the FM/AM radio reception process module as described in claim 1,2 or 3, is characterized in that, the I of described RF signal input part, power input, described radio chip
2the audio output of C interface and described radio chip is all with contact pin mode and outside connecting communication.
5. FM/AM radio reception process module as claimed in claim 1, is characterized in that, described radio chip is Tiger2 series radio chip or the LITHIO series radio chip of NXP company.
6. FM/AM radio reception process module as claimed in claim 1, it is characterized in that, the voltage of described power input is 3.3V.
7. a receiver circuit, is characterized in that, described receiver circuit comprises the FM/AM radio reception process module according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372283.2U CN204795062U (en) | 2015-06-02 | 2015-06-02 | Module and receiver circuit are handled in FMAM radio reception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372283.2U CN204795062U (en) | 2015-06-02 | 2015-06-02 | Module and receiver circuit are handled in FMAM radio reception |
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| Publication Number | Publication Date |
|---|---|
| CN204795062U true CN204795062U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520372283.2U Expired - Fee Related CN204795062U (en) | 2015-06-02 | 2015-06-02 | Module and receiver circuit are handled in FMAM radio reception |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917579A (en) * | 2015-06-02 | 2015-09-16 | 天派电子（深圳）有限公司 | FM(frequency modulation)/AM(amplitude modulation) sound receiving processing module and radio circuit |
-
2015
- 2015-06-02 CN CN201520372283.2U patent/CN204795062U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917579A (en) * | 2015-06-02 | 2015-09-16 | 天派电子（深圳）有限公司 | FM(frequency modulation)/AM(amplitude modulation) sound receiving processing module and radio circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |