CN207625775U - A kind of phonograph radio reception circuit and phonograph - Google Patents
A kind of phonograph radio reception circuit and phonograph Download PDFInfo
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- CN207625775U CN207625775U CN201721849325.2U CN201721849325U CN207625775U CN 207625775 U CN207625775 U CN 207625775U CN 201721849325 U CN201721849325 U CN 201721849325U CN 207625775 U CN207625775 U CN 207625775U
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Abstract
The utility model discloses a kind of phonograph radio reception circuit and phonographs, including：Platform module, radio reception power regulator module, clock module and LED indication module are adjusted in AM magnetic rod antennas, FM antennas, electrostatic protection module, radio receiver module, audio output module, selection；The AM magnetic rod antennas connect audio output module by radio receiver module；The FM antennas, electrostatic protection module, radio receiver module and audio output module are sequentially connected；The radio reception power regulator module, clock module and LED indication module are separately connected radio receiver module；The radio receiver module also adjusts platform module to connect radio reception power regulator module by selection；Radio broadcasting signal is received by AM and FM antennas and is switched to corresponding audio signal and filtering voltage regulation so that phonograph also has AM and FM function of radio receiver, can facilitate tune platform, power supply is more stable, brings and greatly facilitates.
Description
Technical field
The utility model is related to phonograph technical field, more particularly to a kind of phonograph radio reception circuit and phonograph.
Background technology
Gramophone is called phonograph, is a kind of playback set, voice storage with acoustic method in disc（Disk）It is flat
In the arc cutting carved on face.Disc is placed on turntable, is rotated under stylus, to make a sound.Existing phonograph is not
Have function of radio receiver, the music recorded on vinyl record can only be played, AM and FM broadcast wireless signals can not be played, to user with
It is greatly inconvenient to have come.
Thus the prior art could be improved and improve.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of phonograph radio reception circuits
And phonograph, it is intended to solve the problems, such as that existing phonograph can not receive radio broadcasting signal.
In order to achieve the above object, the utility model takes following technical scheme：
A kind of phonograph radio reception circuit, wherein including：
AM magnetic rod antennas for receiving AM signals；
FM antennas for receiving FM signals；
Electrostatic protection module for carrying out electrostatic protection to FM signals；
Radio receiver module for AM signals or FM signals to be converted to corresponding audio signal；
Audio output module for being filtered to audio signal；
For carrying out AM or FM selections and adjusting the selection tune platform module of platform；
Radio reception power regulator module for carrying out voltage stabilizing to power supply；
Purposes provides the clock module of clock signal；
LED indication module for carrying out signal designation；
The AM magnetic rod antennas connect audio output module by radio receiver module；The FM antennas, electrostatic protection module,
Radio receiver module and audio output module are sequentially connected；The radio reception power regulator module, clock module and LED indication module point
Radio receiver module is not connected；The radio receiver module also adjusts platform module to connect radio reception power regulator module by selection.
The phonograph radio reception circuit, wherein the electrostatic protection module includes：First diode, the second diode,
First capacitance and the second capacitance；The anode of first diode is separately connected FM antennas, the cathode of the second diode and radio reception
Machine module；The cathode of first diode passes through the first capacitance and the second capacitance connection radio receiver module respectively；Described first
The minus earth of diode；The anode of second diode connects the cathode of the first diode.
The phonograph radio reception circuit, wherein the radio receiver module includes：Radio chip；The radio chip
AMINN pins and AMINP pins are all connected with AM magnetic rod antennas；The RFINP pins of the radio chip be separately connected FM antennas and
Electrostatic protection module；RFGNDE pins, DVSS pins and the DVDD pins of the radio chip are all connected with electrostatic protection module；Institute
State the STIN pins connection radio reception power regulator module of radio chip；The ST pins of the radio chip connect LED indication module；
The TUNINP pins of the radio chip, VOL pins and AM-FM pins are hanging；RFVDD pins, the AVDD of the radio chip
Pin, STALP pins, XTALN pins and AVSS pins are all connected with clock module；The LOUT pins and ROUT of the radio chip
Pin is all connected with audio output module；The SPAN pins and CH pins of the radio chip are all connected with selection and adjust platform module.
The phonograph radio reception circuit, wherein the model KT0932 of the radio chip.
The phonograph radio reception circuit, wherein the audio output module includes：First resistor, second resistance, third
Resistance, the 4th resistance, third capacitance, the 4th capacitance, the 5th capacitance, the 6th capacitance, the 7th capacitance and the 8th capacitance；The third
One end of capacitance connects radio receiver module, is also grounded by first resistor；The other end of the third capacitance leads to third electricity successively
Resistance and the 7th capacitance connection audio L channel output end, also pass through the 5th capacity earth；One end connection of 4th capacitance is received
Sound machine module, is also grounded by second resistance；The other end of 4th capacitance leads to the 4th resistance and the 8th capacitance connection successively
Audio right channel output end, also passes through the 6th capacity earth.
The phonograph radio reception circuit, wherein the selection adjusts the platform module to include：5th resistance, the 6th resistance, the 7th
Resistance, first switch and swept resistance；The sliding end of the swept resistance connects radio receiver module；The first of the swept resistance
Fixing end connects radio reception power regulator module, is also separately connected radio receiver module and first switch by the 5th resistance；The cunning
The second fixing end ground connection of dynamic resistance；The first switch passes through the 6th resistance and the 7th resistance eutral grounding respectively.
The phonograph radio reception circuit, wherein the radio reception power regulator module includes：8th resistance, the 9th resistance,
Eleventh resistor, twelfth resistor, second switch, the 9th capacitance, the tenth capacitance, the 11st capacitance, the 12nd capacitance, voltage stabilizing core
Piece, the first inductance and the second inductance；The VIN pins of the voltage stabilizing chip connect power voltage terminal by the 8th resistance, also distinguish
Pass through the 9th capacitance and the tenth capacity earth；The DGND pins of the voltage stabilizing chip are grounded；The OUT pins of the voltage stabilizing chip point
Do not pass through the 11st capacitance and the 12nd capacity earth；The OUT pins of the voltage stabilizing chip also pass sequentially through the 9th resistance and
One inductance connection radio receiver module, also passes sequentially through the 9th resistance and platform module is adjusted in the selection of the second inductance connection；9th electricity
Resistance passes sequentially through the first inductance and connects second switch with twelfth resistor, and the second switch connects radio receiver module；Described
Two switches are also grounded by eleventh resistor.
The phonograph radio reception circuit, wherein the LED indication module includes：Tenth resistance and third diode；Institute
The anode for stating third diode connects radio receiver module, the minus earth of the third diode by the tenth resistance.
The phonograph radio reception circuit, wherein the clock module includes：13rd capacitance, the 14th capacitance, the tenth
Five capacitances, the 16th capacitance and crystal oscillator；One end of the crystal oscillator connects radio receiver module, also passes through the 15th capacity earth；Institute
The other end connection radio receiver module for stating crystal oscillator, also passes through the 16th capacity earth；One end of 13rd capacitance connects respectively
Connect chip power supply end and radio receiver module, other end ground connection；One end of 14th capacitance be separately connected chip power supply end and
Radio receiver module, other end ground connection.
A kind of phonograph, wherein including：Phonograph ontology is provided with PCB circuit board in the phonograph ontology,
Phonograph radio reception circuit as described above is provided in the PCB circuit board.
Compared to the prior art, a kind of phonograph radio reception circuit and phonograph provided by the utility model, efficiently solve
The problem of existing phonograph can not receive radio broadcasting signal, including：AM magnetic rod antennas for receiving AM signals；For connecing
Receive the FM antennas of FM signals；Electrostatic protection module for carrying out electrostatic protection to FM signals；For by AM signals or FM signals
Be converted to the radio receiver module of corresponding audio signal；Audio output module for being filtered to audio signal；For into
Row AM or FM selection and the selection tune platform module for adjusting platform；Radio reception power regulator module for carrying out voltage stabilizing to power supply；Purposes carries
For the clock module of clock signal；LED indication module for carrying out signal designation；The AM magnetic rod antennas pass through radio mould
Block connects audio output module；The FM antennas, electrostatic protection module, radio receiver module and audio output module are sequentially connected；
The radio reception power regulator module, clock module and LED indication module are separately connected radio receiver module；The radio receiver module is also
Platform module is adjusted to connect radio reception power regulator module by selection；Radio broadcasting signal is received by AM and FM antennas to be switched to pair
The audio signal answered and filtering voltage regulation etc. so that phonograph also has AM and FM function of radio receiver, and user can be very easily
Platform is adjusted, power supply is more stable, brings and greatly facilitates, and has larger application prospect.
Description of the drawings
Fig. 1 is the structure diagram of the utility model phonograph radio reception circuit preferred embodiment.
Fig. 2 is the circuit diagram of the utility model phonograph radio reception circuit Application Example.
Specific implementation mode
A kind of phonograph radio reception circuit of the utility model offer and phonograph, to make the purpose of this utility model, technical side
Case and effect are clearer, clear, and the utility model is further described in the embodiment that develops simultaneously referring to the drawings.It should manage
Solution, specific embodiment described herein only to explain the utility model, are not used to limit the utility model.
Referring to Fig. 1, Fig. 1 is the structure diagram of the utility model phonograph radio reception circuit preferred embodiment.As shown,
The phonograph radio reception circuit, including：AM magnetic rod antennas 110 for receiving AM signals；FM antennas for receiving FM signals
120；Electrostatic protection module 130 for carrying out electrostatic protection to FM signals；For AM signals or FM signals to be converted to correspondence
Audio signal radio receiver module 140；Audio output module 150 for being filtered to audio signal；For carrying out AM
Or the selection tune platform module 160 of FM selections and tune platform；Radio reception power regulator module 170 for carrying out voltage stabilizing to power supply；Purposes
The clock module 180 of clock signal is provided；LED indication module 190 for carrying out signal designation；The AM magnetic rod antennas 110
Audio output module 150 is connected by radio receiver module 140；The FM antennas 120, electrostatic protection module 130, radio receiver module
140 and audio output module 150 be sequentially connected；The radio reception power regulator module 170, clock module 180 and LED indication module
190 are separately connected radio receiver module 140；It is steady that the radio receiver module 140 also adjusts platform module 160 to connect radio reception power supply by selection
Die block 170.
Specifically, the phonograph radio reception circuit is arranged in phonograph, is received by AM magnetic rod antennas and FM antennas
Then corresponding radio broadcasting signal carries out analysis to radio broadcasting signal by radio receiver module and is converted to a corresponding audio left side
Then right-channel signals are filtered output to audio left and right sound track signals, broadcasted by the loud speaker of phonograph, can allow use
Hear AM broadcast and FM broadcast in family.In practical application, the adjustable selection of user adjust platform module to control radio receiver module into
Row zapping.The utility model carries out voltage stabilizing by radio reception power regulator module to supply voltage so that phonograph radio reception circuit
Work is more stablized, and is filtered to audio left and right sound track signals by audio output module so that phonograph plays wireless wide
It is apparent to broadcast signal effect, sound quality is more preferable.The utility model is also by LED indication module come state whether showing work, to use
Family, which is brought, to be significantly facilitated.The utility model increases radio reception circuit on phonograph so that phonograph is also provided with AM/FM radio reception work(
Can, it brings to user and greatly facilitates.
Preferably, referring to Fig. 2, Fig. 2 is the circuit diagram of the utility model phonograph radio reception circuit Application Example,
In practical application, the phonograph radio reception circuit is as shown in Figure 2.
Further, the electrostatic protection module 130 includes：First diode D1, the second diode D2, the first capacitance C1
With the second capacitance C2；The anode of the first diode D1 is separately connected FM antennas FM, the cathode of the second diode D2 and radio reception
Machine module 140；The cathode of the first diode D1 passes through the first capacitance C1 and the second capacitance C2 connection radio receiver modules respectively
140；The minus earth of the first diode D1；The anode of the second diode D2 connects the cathode of the first diode D1.
Specifically, it due to the frequency range of FM antennas, is increased between FM antennas 120 and radio receiver module 140 quiet
Electric protection module 130 carries out electrostatic protection.It is realized especially by two relatively reversed diodes in parallel, also passes through first
Capacitance C1 and the second capacitance C2 carries out electrostatic protection and filtering.
Preferably, the radio receiver module 140 includes：Radio chip U1；The AMINN pins of the radio chip U1 and
AMINP pins are all connected with AM magnetic rod antennas 110；The RFINP pins of the radio chip U1 are separately connected FM antennas 120 and electrostatic
Protection module 130；RFGNDE pins, DVSS pins and the DVDD pins of the radio chip U1 is all connected with electrostatic protection module
130；The STIN pins connection radio reception power regulator module 170 of the radio chip U1；The ST pins of the radio chip U1 connect
Connect LED indication module 190；The TUNINP pins of the radio chip U1, VOL pins and AM-FM pins are hanging；The radio reception core
RFVDD pins, AVDD pins, STALP pins, XTALN pins and the AVSS pins of piece are all connected with clock module 180；The receipts
The LOUT pins and ROUT pins of sound chip U1 is all connected with audio output module 150；The SPAN pins of the radio chip U1 and
CH pins are all connected with selection and adjust platform module 160.
Specifically, the RFINP pins connection FM antennas 120 of the radio chip U1, are also connected with electrostatic protection module 130
The first diode anode；The RFGNDE pins and DVSS pins of the radio chip U1 is grounded, the radio chip U1's
DVDD pins pass through the second capacity earth.Wherein, pin is vacantly namely unloaded, does not access circuit.In practical application, described
The AM/FM chips of other radio reception can also be used in the model KT0932 of radio chip.
Preferably, the audio output module 150 includes：First resistor R1, second resistance R2,3rd resistor R3, the 4th
Resistance R4, third capacitance C3, the 4th capacitance C4, the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7 and the 8th capacitance C8；Institute
One end connection radio receiver module 140 for stating third capacitance C3, is also grounded by first resistor R1；The third capacitance C3's is another
End leads to 3rd resistor R3 and the 7th capacitance C7 connection audio L channel output end TULI successively, also passes through the 5th capacitance C5 ground connection；
One end of the 4th capacitance C4 connects radio receiver module 140, is also grounded by second resistance R2；The 4th capacitance C4's is another
One end leads to the 4th resistance R4 and the 8th capacitance C8 connection audio right channel output end TURI successively, is also connect by the 6th capacitance C6
Ground.
Specifically, the utility model further increases audio output module on radio reception circuit and believes audio left and right acoustic channels
It number is filtered.As shown in Fig. 2, the LOUT pins of the radio chip U1 are grounded by first resistor R1, is also passed sequentially through
Three capacitances, 3rd resistor and the 7th capacitance connection audio L channel output end TULI, that is, to by this partial circuit to sound
Frequency left channel signals are filtered.Similarly, the ROUT pins of the radio chip U1 are grounded by second resistance, are also passed sequentially through
4th capacitance, the 4th resistance and the 8th capacitance connection audio right channel output end TURI, to which to audio, sound channel signal carries out again
Filtering.The sound quality of the radio broadcasting signal made in this way is more preferable.
Preferably, the selection tune platform module 160 includes：5th resistance R5, the 6th resistance R6, the 7th resistance R7, first
Switch JK1 and swept resistance VR1；The sliding end of the swept resistance VR1 connects radio receiver module 140（Namely radio chip
The CH pins of U1）；The first fixing end connection radio reception power regulator module 170 of the swept resistance VR1, also passes through the 5th resistance
R5 is separately connected radio receiver module 140（The namely SPAN pins of radio chip U1）With first switch JK1；The swept resistance
The second fixing end of VR1 is grounded；The first switch JK1 passes through the 6th resistance R6 and the 7th resistance R7 ground connection respectively.
Specifically, when listening to AM/FM broadcast singals, it is required for frequency modulation to carry out zapping, that is, listen to different frequency range
Platform and cost-effective is raised in broadcasting station in order to facilitate user in phonograph, and the use of the new type is adjusted by swept resistance VR1
Platform, by adjusting the resistance of VR1, the corresponding CH pins by radio chip U1 are fed back, to realize tune platform.In practical application
When, user can realize tune platform by adjusting first switch JK1.
Preferably, more stable in order to listen to radio broadcasting, regulator circuit is additionally arranged to supply voltage, the radio reception power supply is steady
Die block 170 includes：8th resistance R8, the 9th resistance R9, eleventh resistor R11, twelfth resistor R12, second switch JK2,
9th capacitance C9, the tenth capacitance C10, the 11st capacitance C11, the 12nd capacitance C12, voltage stabilizing chip U2, the first inductance L1 and
Two inductance L2；The VIN pins of the voltage stabilizing chip U2 also pass through respectively by the 8th resistance R8 connection power voltage terminal VCC
Nine capacitance C9 and the tenth capacitance C10 ground connection；The DGND pins of the voltage stabilizing chip U2 are grounded；The OUT of the voltage stabilizing chip U2 draws
Foot passes through the 11st capacitance C11 and the 12nd capacitance C12 ground connection respectively；The OUT pins of the voltage stabilizing chip U2 also pass sequentially through
9th resistance R9 and the first inductance L1 connections radio receiver module 140（The namely DVDD pins of radio chip U1）, also lead to successively
It crosses the 9th resistance R9 and platform module 160 is adjusted in the second inductance L2 connections selection（Namely the first fixing end of swept resistance VR1）；Institute
It states the 9th resistance R9 and passes sequentially through the first inductance L1 and connect second switch JK2, the second switch JK2 with twelfth resistor R12
Connect radio receiver module 140（The namely STIN pins of radio chip U1）；The second switch JK2 also passes through eleventh resistor
R11 is grounded.
Specifically, the voltage stabilizing chip of model HT7533 can be used in the voltage stabilizing chip U2, can also be used certainly other
Voltage stabilizing chip.The utility model is additionally arranged regulator circuit and carries out voltage stabilizing to the voltage of supply voltage VCC, to be supplied to radio reception core
The voltage of piece U1 is more stable, but also the work of phonograph radio reception circuit is more stable, substantially increases service life, and circuit is more
Add stability and security.Further it is additionally arranged the first inductance L1 and the second inductance L2 so that platform mould is adjusted to radio receiver module and selection
The power supply of block is more stable.In practical application, user can realize the work of control radio reception circuit by adjusting second switch JK2
Whether.
Please continue to refer to Fig. 2, it is preferable that the LED indication module 190 includes：Tenth resistance R10 and third diode
D3；The anode of the third diode D3 passes through the tenth resistance R10 connections radio receiver module 140（Namely radio chip U1's
ST pins）, the minus earth of the third diode D3.Specifically, LED indication module 190 is added to indicate that the electricity is sung
The working condition of machine radio reception circuit, it can indicate whether work by light on and off state.
Preferably, the clock module 180 includes：13rd capacitance C13, the 14th capacitance C14, the 15th capacitance C15,
16th capacitance C16 and crystal oscillator Y1；One end of the crystal oscillator Y1 connects radio receiver module 140（Namely radio chip U1's
STALP pins）, also pass through the 15th capacitance C15 ground connection；The other end of the crystal oscillator Y1 connects radio receiver module 140（Namely
The XTALN pins of radio chip U1）, also pass through the 16th capacitance C16 ground connection；One end of the 13rd capacitance C13 connects respectively
Meet chip power supply end VDD and radio receiver module 140（Namely the RFVDD pins of radio chip U1 and AVDD pins）, the other end
Ground connection；One end of the 14th capacitance C14 is separately connected chip power supply end VDD and radio receiver module 140（Namely radio reception core
The RFVDD pins and AVDD pins of piece U1）, other end ground connection.In practical application, the AVSS pins of the radio chip U1 are also
Pass through the 16th capacitance C16 ground connection.Specifically, the clock signal generated by crystal oscillator makes radio reception circuit sequentially in time
Work.It is the prior art about power voltage terminal VCC and chip power supply end VDD, can voltage value be set according to actual circuit.
Incorporated by reference to Fig. 1 and Fig. 2, the utility model provides a kind of phonograph radio reception circuit so that phonograph also has AM
With FM function of radio receiver, the operation is stable, sound quality is preferable, has good application prospect.
Based on above-mentioned phonograph radio reception circuit, the utility model additionally provides a kind of phonograph, wherein the phonograph
Including：Phonograph ontology is provided with PCB circuit board in the phonograph ontology, is provided in the PCB circuit board as above
The phonograph radio reception circuit.
In conclusion a kind of phonograph radio reception circuit provided by the utility model and phonograph, including：AM magnetic rod antennas,
FM antennas, electrostatic protection module, radio receiver module, audio output module, selection adjust platform module, radio reception power regulator module, when
Clock module and LED indication module；The AM magnetic rod antennas connect audio output module by radio receiver module；The FM antennas,
Electrostatic protection module, radio receiver module and audio output module are sequentially connected；The radio reception power regulator module, clock module and
LED indication module is separately connected radio receiver module；It is steady that the radio receiver module also adjusts platform module to connect radio reception power supply by selection
Die block；Radio broadcasting signal, which is received, by AM and FM antennas is switched to corresponding audio signal and filtering voltage regulation etc. so that
Phonograph also has AM and FM function of radio receiver, and user can very easily adjust platform, and power supply is more stable, brings greatly side
Just.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (10)
1. a kind of phonograph radio reception circuit, which is characterized in that including：
AM magnetic rod antennas for receiving AM signals；
FM antennas for receiving FM signals；
Electrostatic protection module for carrying out electrostatic protection to FM signals；
Radio receiver module for AM signals or FM signals to be converted to corresponding audio signal；
Audio output module for being filtered to audio signal；
For carrying out AM or FM selections and adjusting the selection tune platform module of platform；
Radio reception power regulator module for carrying out voltage stabilizing to power supply；
Purposes provides the clock module of clock signal；
LED indication module for carrying out signal designation；
The AM magnetic rod antennas connect audio output module by radio receiver module；The FM antennas, electrostatic protection module, radio reception
Machine module and audio output module are sequentially connected；The radio reception power regulator module, clock module and LED indication module connect respectively
Connect radio receiver module；The radio receiver module also adjusts platform module to connect radio reception power regulator module by selection.
2. phonograph radio reception circuit according to claim 1, which is characterized in that the electrostatic protection module includes：First
Diode, the second diode, the first capacitance and the second capacitance；The anode of first diode is separately connected FM antennas, second
The cathode and radio receiver module of diode；The cathode of first diode is received by the first capacitance and the second capacitance connection respectively
Sound machine module；The minus earth of first diode；The anode of second diode connects the cathode of the first diode.
3. phonograph radio reception circuit according to claim 1, which is characterized in that the radio receiver module includes：Radio reception core
Piece；The AMINN pins and AMINP pins of the radio chip are all connected with AM magnetic rod antennas；The RFINP pins of the radio chip
It is separately connected FM antennas and electrostatic protection module；RFGNDE pins, DVSS pins and the DVDD pins of the radio chip connect
Connect electrostatic protection module；The STIN pins of the radio chip connect radio reception power regulator module；The ST of the radio chip draws
Foot connects LED indication module；The TUNINP pins of the radio chip, VOL pins and AM-FM pins are hanging；The radio reception core
RFVDD pins, AVDD pins, STALP pins, XTALN pins and the AVSS pins of piece are all connected with clock module；The radio reception core
The LOUT pins and ROUT pins of piece are all connected with audio output module；The SPAN pins and CH pins of the radio chip are all connected with
Platform module is adjusted in selection.
4. phonograph radio reception circuit according to claim 3, which is characterized in that the model of the radio chip
KT0932。
5. phonograph radio reception circuit according to claim 1, which is characterized in that the audio output module includes：First
Resistance, second resistance, 3rd resistor, the 4th resistance, third capacitance, the 4th capacitance, the 5th capacitance, the 6th capacitance, the 7th capacitance
With the 8th capacitance；One end of the third capacitance connects radio receiver module, is also grounded by first resistor；The third capacitance
The other end leads to 3rd resistor and the 7th capacitance connection audio L channel output end successively, also passes through the 5th capacity earth；Described
One end of four capacitances connects radio receiver module, is also grounded by second resistance；The other end of 4th capacitance leads to the 4th successively
Resistance and the 8th capacitance connection audio right channel output end, also pass through the 6th capacity earth.
6. phonograph radio reception circuit according to claim 1, which is characterized in that the selection adjusts the platform module to include：5th
Resistance, the 6th resistance, the 7th resistance, first switch and swept resistance；The sliding end of the swept resistance connects radio receiver module；
First fixing end of the swept resistance connects radio reception power regulator module, is also separately connected radio receiver module by the 5th resistance
And first switch；Second fixing end of the swept resistance is grounded；The first switch passes through the 6th resistance and the 7th electricity respectively
Resistance ground connection.
7. phonograph radio reception circuit according to claim 1, which is characterized in that the radio reception power regulator module includes：
8th resistance, the 9th resistance, eleventh resistor, twelfth resistor, second switch, the 9th capacitance, the tenth capacitance, the 11st electricity
Appearance, the 12nd capacitance, voltage stabilizing chip, the first inductance and the second inductance；The VIN pins of the voltage stabilizing chip are connected by the 8th resistance
Power voltage terminal is connect, also passes through the 9th capacitance and the tenth capacity earth respectively；The DGND pins of the voltage stabilizing chip are grounded；It is described
The OUT pins of voltage stabilizing chip pass through the 11st capacitance and the 12nd capacity earth respectively；The OUT pins of the voltage stabilizing chip also according to
It is secondary by the 9th resistance and the first inductance connection radio receiver module, also pass sequentially through the 9th resistance and the second inductance connection selection adjust
Platform module；9th resistance passes sequentially through the first inductance and connects second switch, the second switch connection with twelfth resistor
Radio receiver module；The second switch is also grounded by eleventh resistor.
8. phonograph radio reception circuit according to claim 1, which is characterized in that the LED indication module includes：Tenth electricity
Resistance and third diode；The anode of the third diode connects radio receiver module, the third diode by the tenth resistance
Minus earth.
9. phonograph radio reception circuit according to claim 1, which is characterized in that the clock module includes：13rd electricity
Appearance, the 14th capacitance, the 15th capacitance, the 16th capacitance and crystal oscillator；One end of the crystal oscillator connects radio receiver module, also passes through
15th capacity earth；The other end of the crystal oscillator connects radio receiver module, also passes through the 16th capacity earth；Described 13rd
One end of capacitance is separately connected chip power supply end and radio receiver module, other end ground connection；Distinguish one end of 14th capacitance
Connect chip power supply end and radio receiver module, other end ground connection.
10. a kind of phonograph, which is characterized in that including：Phonograph ontology is provided with PCB circuits in the phonograph ontology
Plate is arranged in the PCB circuit board just like claim 1 ~ 9 any one of them phonograph radio reception circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721849325.2U CN207625775U (en) | 2017-12-26 | 2017-12-26 | A kind of phonograph radio reception circuit and phonograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721849325.2U CN207625775U (en) | 2017-12-26 | 2017-12-26 | A kind of phonograph radio reception circuit and phonograph |
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| Publication Number | Publication Date |
|---|---|
| CN207625775U true CN207625775U (en) | 2018-07-17 |
Family
ID=62830260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721849325.2U Active CN207625775U (en) | 2017-12-26 | 2017-12-26 | A kind of phonograph radio reception circuit and phonograph |
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| Country | Link |
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| CN (1) | CN207625775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107886976A (en) * | 2017-12-26 | 2018-04-06 | 深圳市佳音王科技股份有限公司 | A kind of multifunctional combination phonograph and its device |
| CN113411699A (en) * | 2021-07-13 | 2021-09-17 | 东莞市金伟聚科技有限公司 | Circuit of multifunctional desktop loudspeaker box |
-
2017
- 2017-12-26 CN CN201721849325.2U patent/CN207625775U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107886976A (en) * | 2017-12-26 | 2018-04-06 | 深圳市佳音王科技股份有限公司 | A kind of multifunctional combination phonograph and its device |
| CN107886976B (en) * | 2017-12-26 | 2024-02-09 | 深圳市佳音王科技股份有限公司 | Multifunctional combined record player and device thereof |
| CN113411699A (en) * | 2021-07-13 | 2021-09-17 | 东莞市金伟聚科技有限公司 | Circuit of multifunctional desktop loudspeaker box |
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