CN105245241A - Radio work circuit of vehicle-mounted navigation device - Google Patents
Radio work circuit of vehicle-mounted navigation device Download PDFInfo
- Publication number
- CN105245241A CN105245241A CN201510693150.XA CN201510693150A CN105245241A CN 105245241 A CN105245241 A CN 105245241A CN 201510693150 A CN201510693150 A CN 201510693150A CN 105245241 A CN105245241 A CN 105245241A
- Authority
- CN
- China
- Prior art keywords
- pin
- radio chip
- electric capacity
- described radio
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The invention discloses a radio work circuit of a vehicle-mounted navigation device. The radio work circuit comprises a radio chip U13, an antenna interface J3, a number of resistors, a number of capacitors and an inductor L3. According to the invention, the radio circuit is integrated with a circuit in a navigator, and has the advantages of simple control and simple structure; simply through the radio chip and a number of simple resistors, the capacitor can realize the radio function of the navigator; and the radio work circuit of a vehicle-mounted navigation device has the advantages of low manufacture cost and high stability.
Description
Technical field
The present invention relates to a kind of radio reception circuit, particularly a kind of broadcast receiver operating circuit of in-vehicle navigation apparatus.
Background technology
Along with the development of automotive engineering, the function of vehicle mounted guidance gets more and more, and its multifunctionality can increase buying rate.But existing vehicle mounted guidance does not all have function of radio receiver, the function of radio receiver of automobile is all integrated in the circuit of automotive interior, and its structure is comparatively complicated, causes cost higher, and due to syndeton comparatively complicated, stability is not fine.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: provide that a kind of structure is simple, cost is lower and the broadcast receiver operating circuit of the in-vehicle navigation apparatus that stability is higher.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the broadcast receiver operating circuit providing a kind of in-vehicle navigation apparatus, comprises radio chip U13, antennal interface J3, some resistance, some electric capacity, inductance L 3;
Described radio chip U13 is 7703TUNNER chip, and described radio chip U13 comprises ANT pin, RFGND1 pin, RFGND2 pin, ISSSTAUS pin, FSU pin, ADJCH pin, AMST/MP pin, SSTOP pin, SDA pin, SCL pin ,+5V power pins, MPXW pin, AFS pin, QUALYOUT pin, GND1 pin, R_OUT pin, L_OUT pin, GND2 pin ,+8V5 power pins and SHELL pin;
The ADJCH pin of described radio chip U13, AMST/MP pin, MPXW pin and QUALYOUT pin are vacant, the ANT pin of described radio chip U13 is connected with second terminal of described antennal interface J3, first terminal of described antennal interface J3 is connected with the RFGND1 pin of described radio chip U13, also be connected with the RFGND2 pin of described radio chip U13, also be connected with the ISSSTAUS pin of described radio chip U13 by a resistance R63, node between the RFGND2 of described radio chip U13 and first terminal of described antennal interface J3 is also all connected with GND1 and the GND2 pin of described radio chip U13, the GND2 pin of the RFGND2 of described radio chip U13 is also connected with the SHELL pin of described radio chip U13, node ground connection between the GND2 pin of described radio chip U13 and described SHELL pin, described SHELL pin is also connected with second end of an electric capacity EC8, the first end of described electric capacity EC8 is connected with+8V5 the pin of described radio chip U13, + 8V5 the pin of described radio chip U13 connects+8.5V power supply, + 8V5 pin also the ground connection of described radio chip U13,
The L_OUT pin ground connection of described radio chip U13, the L_OUT pin of described radio chip U13 is also successively by a resistance R71, an electric capacity C52 ground connection, and a resistance R65 is in parallel with described electric capacity C52; Node between described resistance R71 and described electric capacity C52 is direct-connected connects wireless left channel interface, the R_OUT pin ground connection of described radio chip U13, the R_OUT of described radio chip U13 is also successively by a resistance R70, a resistance R8 ground connection, and an electric capacity C10 and described resistance R8 is connected in parallel; Node between described resistance R70, resistance R8 directly connects wireless right channel interface;
The AFS pin of described radio chip U13 is connected with power supply TU5V by a resistance R27, an electric capacity EC10 successively, and+V the pin of described radio chip U13 is directly connected with power supply TU5V.Described power supply TU5V is also by electric capacity EC10 ground connection, and described power supply TU5V is also connected with power supply D5V by inductance L 3, and described power supply TU5V is also connected with power supply+8.5V by resistance R12;
The SCL pin of described radio chip U13 connects the control chip of navigator by a resistance R73, the SDA pin of described radio chip U13 connects the control chip of described navigator by a resistance R72;
The SSTOP pin of described radio chip U13 is connected with power supply TU5V by a resistance R19 successively, and the SSTOP pin of described radio chip U13 is also directly connected with described control chip;
The FSU of described radio chip U13 connects described control chip.
Further, the broadcast receiver operating circuit of described in-vehicle navigation apparatus also comprises an electric capacity C17, and one end of described electric capacity C17 is connected with+8V5 the pin of described radio chip U13, other end ground connection.
Further, the broadcast receiver operating circuit of described in-vehicle navigation apparatus also comprises an electric capacity C30, and described electric capacity C30 is in parallel with described electric capacity C17.
Further, the broadcast receiver operating circuit of described in-vehicle navigation apparatus also comprises an electric capacity C32, and described electric capacity C32 is in parallel with described electric capacity C30.
Further, the broadcast receiver operating circuit of described in-vehicle navigation apparatus also comprises an electric capacity C4, and one end of described electric capacity C4 is connected with the L_OUT pin of described radio chip U13, other end ground connection.
Further, the broadcast receiver operating circuit of described in-vehicle navigation apparatus also comprises an electric capacity C50, and one end of described electric capacity C50 is connected with the R_OU5 pin of described radio chip U13, other end ground connection.
The broadcast receiver operating circuit of above-mentioned in-vehicle navigation apparatus, integrated with navigator internal circuit, it controls simply, structure is simple, only needs the function of radio receiver that namely can be realized navigator by a radio chip and simple several resistance, electric capacity, its manufacturing cost is lower, and stability is higher.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 and Fig. 2 is the circuit theory diagrams of the broadcast receiver operating circuit of in-vehicle navigation apparatus of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1 and Fig. 2, is the circuit theory diagrams of the broadcast receiver operating circuit of in-vehicle navigation apparatus of the present invention.The broadcast receiver operating circuit of the in-vehicle navigation apparatus of the present embodiment forms primarily of radio chip U13, antennal interface J3, some resistance, some electric capacity, inductance L 3.
Described radio chip U13 adopts 7703TUNNER chip, and described radio chip U13 has ANT pin, RFGND1 pin, RFGND2 pin, ISSSTAUS pin, FSU pin, ADJCH pin, AMST/MP pin, SSTOP pin, SDA pin, SCL pin ,+5V power pins, MPXW pin, AFS pin, QUALYOUT pin, GND1 pin, R_OUT pin, L_OUT pin, GND2 pin ,+8V5 power pins and SHELL pin.Wherein:
The ADJCH pin of described radio chip U13, AMST/MP pin, MPXW pin and QUALYOUT pin are vacant, the ANT pin of described radio chip U13 is connected with second terminal of described antennal interface J3, first terminal of described antennal interface J3 is connected with the RFGND1 pin of described radio chip U13, also be connected with the RFGND2 pin of described radio chip U13, also be connected with the ISSSTAUS pin of described radio chip U13 by a resistance R63, node between the RFGND2 of described radio chip U13 and first terminal of described antennal interface J3 is also all connected with GND1 and the GND2 pin of described radio chip U13, the GND2 pin of described radio chip U13 is also connected with the SHELL pin of described radio chip U13, node ground connection between the GND2 pin of described radio chip U13 and described SHELL pin, described SHELL pin is also connected with second end of an electric capacity EC8, the first end of described electric capacity EC8 is connected with+8V5 the pin of described radio chip U13, + 8V5 the pin of described radio chip U13 connects+8.5V power supply, + 8V5 the pin of described radio chip U13 is also respectively by an electric capacity C17, one electric capacity C30, one electric capacity C32 ground connection.
The L_OUT pin of described radio chip U13 is by an electric capacity C4 ground connection, and the node between the L_OUT pin of described radio chip U13 and described electric capacity C4 is successively by a resistance R71, an electric capacity C52 ground connection, and a resistance R65 is in parallel with described electric capacity C52; Node between described resistance R71 with described electric capacity C52 is directly connected wireless left channel interface TUNNER_L, the R_OUT pin of described radio chip U13 is by an electric capacity C50 ground connection, node between the R_OUT pin of described radio chip U13 and described electric capacity C50 is successively by a resistance R70, a resistance R8 ground connection, and an electric capacity C10 and described resistance R8 is connected in parallel; Described resistance R70 is directly connected wireless right channel interface TUNNER_R with the node between resistance R8, in order to audio signal to be passed by left and right acoustic channels.
The AFS pin of described radio chip U13 is connected with power supply TU5V by a resistance R27, an electric capacity EC10 successively, and+V the pin of described radio chip U13 is directly connected with power supply TU5V.Described power supply TU5V is also by electric capacity EC10 ground connection, and described power supply TU5V is also connected with power supply D5V by inductance L 3, and described power supply TU5V is also connected with power supply+8.5V by resistance R12.
The SCL pin of described radio chip U13 connects the control chip of navigator by a resistance R73, the control chip of described navigator adopts STM8 single-chip microcomputer.The SDA pin of described radio chip U13 connects the control chip of described navigator by a resistance R72.
The SSTOP pin of described radio chip U13 is connected with power supply TU5V by a resistance R19, and the SSTOP pin of described radio chip U13 is also directly connected with described control chip.
The FSU of described radio chip U13 connects described control chip.
The broadcast receiver operating circuit of above-mentioned in-vehicle navigation apparatus, radio reception circuit is arranged in described navigator, be connected with the controller of described navigator, controller according to described navigator carries out work, its SDA pin is connected with the controller relevant pins of navigator respectively with SCL pin, in order to the controller communication with navigator, receives the order that controller sends over, receive FM signal by antenna connection interface, then by R_OUT and L_OUT, the audio signal of radio reception is sent out.Radio reception circuit of the present invention, integrated with navigator internal circuit, it controls simply, structure is simple, only needs the function of radio receiver that namely can be realized navigator by a radio chip and simple several resistance, electric capacity, its manufacturing cost is lower, and stability is higher.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention 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 invention.
Claims (6)
1. a broadcast receiver operating circuit for in-vehicle navigation apparatus, is characterized in that: comprise radio chip U13, antennal interface J3, some resistance, some electric capacity, inductance L 3;
Described radio chip U13 is 7703TUNNER chip, and described radio chip U13 comprises ANT pin, RFGND1 pin, RFGND2 pin, ISSSTAUS pin, FSU pin, ADJCH pin, AMST/MP pin, SSTOP pin, SDA pin, SCL pin ,+5V power pins, MPXW pin, AFS pin, QUALYOUT pin, GND1 pin, R_OUT pin, L_OUT pin, GND2 pin ,+8V5 power pins and SHELL pin;
The ADJCH pin of described radio chip U13, AMST/MP pin, MPXW pin and QUALYOUT pin are vacant, the ANT pin of described radio chip U13 is connected with second terminal of described antennal interface J3, first terminal of described antennal interface J3 is connected with the RFGND1 pin of described radio chip U13, also be connected with the RFGND2 pin of described radio chip U13, also be connected with the ISSSTAUS pin of described radio chip U13 by a resistance R63, node between the RFGND2 of described radio chip U13 and first terminal of described antennal interface J3 is also all connected with GND1 and the GND2 pin of described radio chip U13, the GND2 pin of the RFGND2 of described radio chip U13 is also connected with the SHELL pin of described radio chip U13, node ground connection between the GND2 pin of described radio chip U13 and described SHELL pin, described SHELL pin is also connected with second end of an electric capacity EC8, the first end of described electric capacity EC8 is connected with+8V5 the pin of described radio chip U13, + 8V5 the pin of described radio chip U13 connects+8.5V power supply, + 8V5 pin also the ground connection of described radio chip U13,
The L_OUT pin ground connection of described radio chip U13, the L_OUT pin of described radio chip U13 is also successively by a resistance R71, an electric capacity C52 ground connection, and a resistance R65 is in parallel with described electric capacity C52; Node between described resistance R71 and described electric capacity C52 is direct-connected connects wireless left channel interface, the R_OUT pin ground connection of described radio chip U13, the R_OUT of described radio chip U13 is also successively by a resistance R70, a resistance R8 ground connection, and an electric capacity C10 and described resistance R8 is connected in parallel; Node between described resistance R70, resistance R8 directly connects wireless right channel interface;
The AFS pin of described radio chip U13 is connected with power supply TU5V by a resistance R27, an electric capacity EC10 successively, and+V the pin of described radio chip U13 is directly connected with power supply TU5V; Described power supply TU5V is also by electric capacity EC10 ground connection, and described power supply TU5V is also connected with power supply D5V by inductance L 3, and described power supply TU5V is also connected with power supply+8.5V by resistance R12;
The SCL pin of described radio chip U13 connects the control chip of navigator by a resistance R73, the SDA pin of described radio chip U13 connects the control chip of described navigator by a resistance R72;
The SSTOP pin of described radio chip U13 is connected with power supply TU5V by a resistance R19 successively, and the SSTOP pin of described radio chip U13 is also directly connected with described control chip;
The FSU of described radio chip U13 connects described control chip.
2. the broadcast receiver operating circuit of in-vehicle navigation apparatus as claimed in claim 1, it is characterized in that: also comprise an electric capacity C17, one end of described electric capacity C17 is connected with+8V5 the pin of described radio chip U13, other end ground connection.
3. the broadcast receiver operating circuit of in-vehicle navigation apparatus as claimed in claim 2, it is characterized in that: also comprise an electric capacity C30, described electric capacity C30 is in parallel with described electric capacity C17.
4. the broadcast receiver operating circuit of in-vehicle navigation apparatus as claimed in claim 3, it is characterized in that: also comprise an electric capacity C32, described electric capacity C32 is in parallel with described electric capacity C30.
5. the broadcast receiver operating circuit of in-vehicle navigation apparatus as claimed in claim 1, it is characterized in that: also comprise an electric capacity C4, one end of described electric capacity C4 is connected with the L_OUT pin of described radio chip U13, other end ground connection.
6. the broadcast receiver operating circuit of in-vehicle navigation apparatus as claimed in claim 6, it is characterized in that: also comprise an electric capacity C50, one end of described electric capacity C50 is connected with the R_OU5 pin of described radio chip U13, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510693150.XA CN105245241A (en) | 2015-10-21 | 2015-10-21 | Radio work circuit of vehicle-mounted navigation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510693150.XA CN105245241A (en) | 2015-10-21 | 2015-10-21 | Radio work circuit of vehicle-mounted navigation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105245241A true CN105245241A (en) | 2016-01-13 |
Family
ID=55042764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510693150.XA Pending CN105245241A (en) | 2015-10-21 | 2015-10-21 | Radio work circuit of vehicle-mounted navigation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105245241A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947882A (en) * | 2017-12-11 | 2018-04-20 | 广州市思创信息技术有限公司 | A kind of vehicle-mounted radio control system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204241888U (en) * | 2014-10-22 | 2015-04-01 | 重庆金宏汽车电子有限公司 | The sound effect processing circuit of vehicle navigator |
| CN205092853U (en) * | 2015-10-21 | 2016-03-16 | 重庆金宏汽车电子有限公司 | Vehicle automatic navigator's radio reception circuit |
-
2015
- 2015-10-21 CN CN201510693150.XA patent/CN105245241A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204241888U (en) * | 2014-10-22 | 2015-04-01 | 重庆金宏汽车电子有限公司 | The sound effect processing circuit of vehicle navigator |
| CN205092853U (en) * | 2015-10-21 | 2016-03-16 | 重庆金宏汽车电子有限公司 | Vehicle automatic navigator's radio reception circuit |
Non-Patent Citations (1)
| Title |
|---|
| GUANGDONG COAGENT ELECTRONICS S&T; CO.,LTD.: ""CAR AUDIO ENTERTAINMENT SYSTEM Schematics CA1615"", 《FCC ID: Y7QSSHBS06》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947882A (en) * | 2017-12-11 | 2018-04-20 | 广州市思创信息技术有限公司 | A kind of vehicle-mounted radio control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104183900B (en) | Vehicle antenna | |
| CN205092853U (en) | Vehicle automatic navigator's radio reception circuit | |
| CN104868227A (en) | Combined antenna oscillator, dwarf type vehicle-mounted antenna and method for manufacturing combined antenna oscillator | |
| DE102015104747B4 (en) | Systems and methods for enabling portable device communications | |
| CN204334556U (en) | A vehicle communication module | |
| CN105245241A (en) | Radio work circuit of vehicle-mounted navigation device | |
| DE102013205195B4 (en) | An inductive charger for providing a radio frequency ("RF") signal to a portable electronic device | |
| DE102009015135A1 (en) | Vehicle, vehicle interior network, network and a kit for motor vehicles | |
| CN204067567U (en) | Dwarf forms car antenna | |
| CN105261832B (en) | Vehicle-mounted two-in-one antenna | |
| CN204577608U (en) | A kind of in-vehicle wireless communication oscillator | |
| CN203300791U (en) | AM/FM power line antenna | |
| US8588848B2 (en) | Method of using handle cord of a fixed wireless phone as FM antenna and a fixed wireless phone | |
| CN104218305B (en) | AM/FM mains antenna | |
| CN203351737U (en) | Rod antenna device for multi-signal reception | |
| CN104796864A (en) | Method for enabling vehicle-mounted navigator to access network and system thereof | |
| CN205944452U (en) | Vehicle and automobile -used integrated antenna thereof | |
| CN204315717U (en) | Radio oscillator and dwarf forms car antenna | |
| CN203760666U (en) | Vehicle-mounted antenna | |
| CN214068902U (en) | Integrated helical antenna | |
| CN103715494A (en) | Vehicle mounted antenna | |
| CN207320306U (en) | Automotive internal formula GPS, 4G combined antenna | |
| CN103342117A (en) | Wireless car body control module | |
| CN204651471U (en) | For vehicle-mounted combined antenna oscillator and dwarf forms car antenna | |
| CN204118243U (en) | Radio communication oscillator and dwarf forms car antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |