CN205376753U - Mobile communication equipment of anti TDD electric current acoustic jamming - Google Patents
Mobile communication equipment of anti TDD electric current acoustic jamming Download PDFInfo
- Publication number
- CN205376753U CN205376753U CN201590000009.0U CN201590000009U CN205376753U CN 205376753 U CN205376753 U CN 205376753U CN 201590000009 U CN201590000009 U CN 201590000009U CN 205376753 U CN205376753 U CN 205376753U
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- frequency module
- audio
- radio
- mobile communication
- pcb
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
Abstract
The utility model relates to a mobile communication equipment of anti TDD electric current acoustic jamming, including the PCB circuit board, be provided with baseband chip, audio frequency module, radio frequency module, USB port, antenna and battery connector on the PCB circuit board, the both sides on the PCB circuit board are located to audio frequency module and radio frequency module branch, and the baseband chip sets up between audio frequency module and radio frequency module, the battery connector next -door neighbour sets up in radio frequency module's top, the ground backward flow route that radio frequency module was avoided through first ground wire to the ground connection foot of USB port is connected to the audio frequency ground of baseband chip, circuit relevant with the audio frequency on the PCB circuit board is kept away from regional setting between radio frequency module and the battery connector. Adopt the utility model discloses the scheme can prevent that radio frequency module from causing the interference and leading to the audio signal infidelity the audio frequency module, has avoided TDD electric current sound to propagate the interference problem of bringing audio signal through conduction method.
Description
Technical field
This utility model relates to communication technical field, more particularly, it relates to the mobile communication equipment of a kind of anti-TDD current sound interference.
Background technology
GSM cell phone adopts TDMA (time division multiple acess) time slot to share technology, produce the high power RF (RadioFrequency of 900MHz or 1800MHz, RF) signal, repeat with the frequency of 217Hz, within a cycle, (4.6ms) point has 8 gaps, the time wherein only having 1 gap (0.58ms) is launching RF power, and instantaneous burst electric current can more than 1A.If this periodic intermittent current pulses coupled in voicefrequency circuit, the 217Hz in audiorange " tick beep " current sound will be produced, which includes 217Hz and its harmonic component.
TDD current sound is propagated mainly through two ways: conduction and radiation.Wherein, conduction has influence on voicefrequency circuit mainly by the mode of source current ripple and ground wire ripple current.RF signal is then coupled to audio system and audio frequency peripheral devices mainly by antenna transmitting by radiation, and the modulation through audio parts produces the audio frequency envelope signal of 217Hz.The big electric current of burst that Conduction Interference is radio-frequency module needs from cell drawing, and battery itself has certain internal resistance, thus causing the ripple shake having 217Hz on the power supply of whole system, this shake can be delivered to the power end of audio frequency power amplifier equally.RF noise problem is related to the use sense of user and is subject to, and solves the first step that problems is the communication apparatus Audio Designs such as mobile phone.
Utility model content
The technical problems to be solved in the utility model is in that, for the drawbacks described above of prior art, it is provided that the mobile communication equipment of a kind of anti-TDD current sound interference.
This utility model solves its technical problem and be the technical scheme is that
Construct the mobile communication equipment of a kind of anti-TDD current sound interference, including PCB, described PCB is provided with baseband chip, audio-frequency module, radio-frequency module, USB port, antenna and battery connector；Described audio-frequency module and described radio-frequency module are divided into the both sides in described PCB, and described baseband chip is arranged between described audio-frequency module and described radio-frequency module；Described battery connector is disposed proximate in the top of described radio-frequency module；The grounding leg of described USB port is avoided the ground return flow path of described radio-frequency module by the first ground wire and is connected to the audio frequency ground of described baseband chip；Circuit relevant to audio frequency in described PCB is arranged away from region between described radio-frequency module and described battery connector.
Mobile communication equipment described in the utility model, wherein, described first ground line width is more than 0.5 millimeter.
Mobile communication equipment described in the utility model, wherein, described antenna is arranged at the tip position in described PCB.
Mobile communication equipment described in the utility model, wherein, described USB port is arranged at the bottom position in described PCB.
Mobile communication equipment described in the utility model, wherein, described battery connector to the distance of described radio-frequency module less than the distance to described audio-frequency module.
Mobile communication equipment described in the utility model, wherein, described PCB is provided with loudspeaker, and described loudspeaker are arranged near described audio-frequency module.
The beneficial effects of the utility model are in that: by by audio-frequency module, radio-frequency module, baseband chip rational deployment in PCB, the both sides in PCB it are divided into by audio-frequency module and radio-frequency module, baseband chip is arranged between audio-frequency module and radio-frequency module, it is ensured that audio-frequency module is arranged away from radio-frequency module；Circuit relevant to audio frequency in PCB is arranged away from region between radio-frequency module and battery connector, prevent the radio-frequency module from audio-frequency module being interfered and causes audio signal infidelity, it is to avoid TDD current sound propagates the interference problem that audio signal is brought by conduction pattern.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the mobile communication equipment PCB layout structure schematic diagram of the anti-TDD current sound interference of this utility model preferred embodiment.
Detailed description of the invention
The mobile communication equipment of the anti-TDD current sound interference of this utility model preferred embodiment includes PCB, wherein PCB section layout structure is as it is shown in figure 1, be provided with baseband chip 2, audio-frequency module 3, radio-frequency module 4, USB port 7, antenna 5 and battery connector 6 in PCB 1；Wherein, audio-frequency module 3 and radio-frequency module 4 are divided into the both sides in PCB 1, and baseband chip 2 is arranged between audio-frequency module 3 and radio-frequency module 4；Battery connector 6 is disposed proximate in the top of radio-frequency module 4；The grounding leg of USB port 7 is avoided the ground return flow path of radio-frequency module 4 by the first ground wire 8 and is connected to the audio frequency ground of baseband chip 2；Circuit relevant to audio frequency in PCB 1 is arranged away from region between radio-frequency module 4 and battery connector 6.
Adopt above-mentioned embodiment can be reduced to the shortest by the distance between radio-frequency module 4 and battery connector 6, circuit relevant to audio frequency in PCB 1 is arranged away from region between radio-frequency module 4 and battery connector 6 simultaneously, it is possible to prevent radio-frequency module 4 audio-frequency module 3 to be interfered and causes audio signal infidelity, reach the effect of the anti-TDD current sound interference of optimum, it is to avoid the interference problem that audio signal is brought by TDD current sound by conduction pattern propagation.
Preferably, above-mentioned first ground wire 8 width is more than 0.5 millimeter, to reach the effect of the anti-TDD current sound interference of optimum.
Preferably, in above-described embodiment, being additionally provided with antenna 5 in PCB 1, antenna 5 is arranged at the tip position in PCB 1.
Preferably, in above-described embodiment, USB port 7 is arranged at the bottom position in PCB 1.
Preferably, in above-described embodiment, battery connector 6 arrives the distance distance less than battery connector 6 to audio-frequency module 3 of radio-frequency module 4.
Preferably, in above-described embodiment, PCB 1 being provided with loudspeaker 11, loudspeaker 11 are arranged near audio-frequency module 3, to ensure that the circuit relevant to audio frequency is arranged away from region between radio-frequency module 4 and battery connector 6.
To sum up, this utility model is by by audio-frequency module 3, radio-frequency module 4, baseband chip 2 rational deployment in PCB 1, being divided into the both sides in PCB 1 by audio-frequency module 3 and radio-frequency module 4, baseband chip 2 is arranged between audio-frequency module 3 and radio-frequency module 4；Circuit relevant to audio frequency in PCB 1 is arranged away from region between radio-frequency module 4 and battery connector 6, prevent the radio-frequency module 4 from audio-frequency module 3 being interfered and causes audio signal infidelity, it is to avoid TDD current sound propagates the interference problem that audio signal is brought by conduction pattern.
It should be appreciated that for those of ordinary skills, it is possible to improved according to the above description or converted, and all these are improved and convert the protection domain that all should belong to this utility model claims.
Claims (6)
1. the mobile communication equipment of an anti-TDD current sound interference, including PCB (1), described PCB (1) is provided with baseband chip (2), audio-frequency module (3), radio-frequency module (4), USB port (7), antenna (5) and battery connector (6)；It is characterized in that, described audio-frequency module (3) and described radio-frequency module (4) are divided into the both sides in described PCB (1), and described baseband chip (2) is arranged between described audio-frequency module (3) and described radio-frequency module (4)；Described battery connector (6) is disposed proximate in the top of described radio-frequency module (4)；The grounding leg of described USB port (7) is avoided the ground return flow path of described radio-frequency module (4) by the first ground wire (8) and is connected to the audio frequency ground of described baseband chip (2)；The upper circuit relevant to audio frequency of described PCB (1) is arranged away from region between described radio-frequency module (4) and described battery connector (6).
2. mobile communication equipment according to claim 1, it is characterised in that described first ground wire (8) width is more than 0.5 millimeter.
3. mobile communication equipment according to claim 1, it is characterised in that described antenna (5) is arranged at the tip position in described PCB (1).
4. mobile communication equipment according to claim 1, it is characterised in that described USB port (7) is arranged at the bottom position in described PCB (1).
5. mobile communication equipment according to claim 1, it is characterised in that described battery connector (6) to the distance of described radio-frequency module (4) less than the distance to described audio-frequency module (3).
6. mobile communication equipment according to claim 1, it is characterised in that be provided with loudspeaker (11) in described PCB (1), described loudspeaker (11) are arranged near described audio-frequency module (3).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/071515 WO2016115743A1 (en) | 2015-01-24 | 2015-01-24 | Tdd current noise interference-resisting mobile communications device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205376753U true CN205376753U (en) | 2016-07-06 |
Family
ID=56275696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201590000009.0U Active CN205376753U (en) | 2015-01-24 | 2015-01-24 | Mobile communication equipment of anti TDD electric current acoustic jamming |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205376753U (en) |
| WO (1) | WO2016115743A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231748A (en) * | 2017-07-14 | 2017-10-03 | 北斗民用战略新兴产业（重庆）研究院有限公司 | A kind of carry-on communication apparatus and its pcb board structure |
| CN108540659A (en) * | 2018-03-29 | 2018-09-14 | 努比亚技术有限公司 | Reduce method, terminal and the computer readable storage medium of TDD influence of noises |
| CN113299319A (en) * | 2021-05-25 | 2021-08-24 | 华晨鑫源重庆汽车有限公司 | Voice recognition module and recognition method based on edge AI chip |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106790785A (en) * | 2016-11-29 | 2017-05-31 | 努比亚技术有限公司 | A kind of mobile terminal charging structure and mobile terminal |
| CN112888057B (en) * | 2021-01-12 | 2023-09-08 | 维沃移动通信有限公司 | Control method and device of WIFI unit and electronic equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201438705U (en) * | 2009-04-02 | 2010-04-14 | 宁波明讯电子科技有限公司 | Multifunctional GSM-standard mobile phone mainboard |
| CN201491043U (en) * | 2009-04-09 | 2010-05-26 | 宁波明讯电子科技有限公司 | Multifunction GSM system mobile phone main board |
| CN201639618U (en) * | 2010-01-08 | 2010-11-17 | 青岛海信移动通讯技术股份有限公司 | Ultrathin music mobile phone |
| CN102237342B (en) * | 2010-05-05 | 2016-01-20 | 中兴通讯股份有限公司 | A kind of wireless communication module product |
-
2015
- 2015-01-24 WO PCT/CN2015/071515 patent/WO2016115743A1/en active Application Filing
- 2015-01-24 CN CN201590000009.0U patent/CN205376753U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231748A (en) * | 2017-07-14 | 2017-10-03 | 北斗民用战略新兴产业（重庆）研究院有限公司 | A kind of carry-on communication apparatus and its pcb board structure |
| CN108540659A (en) * | 2018-03-29 | 2018-09-14 | 努比亚技术有限公司 | Reduce method, terminal and the computer readable storage medium of TDD influence of noises |
| CN108540659B (en) * | 2018-03-29 | 2021-05-18 | 努比亚技术有限公司 | Method, terminal and computer readable storage medium for reducing TDD noise influence |
| CN113299319A (en) * | 2021-05-25 | 2021-08-24 | 华晨鑫源重庆汽车有限公司 | Voice recognition module and recognition method based on edge AI chip |
| CN113299319B (en) * | 2021-05-25 | 2023-01-24 | 华晨鑫源重庆汽车有限公司 | Voice recognition module and recognition method based on edge AI chip |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016115743A1 (en) | 2016-07-28 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |