CN101505167B - Audio encoding and decoding module for mobile terminal - Google Patents
Audio encoding and decoding module for mobile terminal Download PDFInfo
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- CN101505167B CN101505167B CN200810188223XA CN200810188223A CN101505167B CN 101505167 B CN101505167 B CN 101505167B CN 200810188223X A CN200810188223X A CN 200810188223XA CN 200810188223 A CN200810188223 A CN 200810188223A CN 101505167 B CN101505167 B CN 101505167B
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- Headphones And Earphones (AREA)
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Abstract
The invention provides an audio coding and decoding module of a mobile terminal, which aims to solve the problems of electromagnetic interference and electromagnetic compatibility when an audio coding and decoding chip is integrated into a module. The problems of the electromagnetic interference and the electromagnetic compatibility are eliminated or reduced by reasonably arranging pins. The audio coding and decoding module can be widely applied to the mobile terminals.
Description
Technical field
The invention belongs to mobile communication and audio encoding and decoding technology.
Background technology
Mostly the hardware structure of existing mobile terminal is each components and parts are directly connected on mainboard, and the audio encoding and decoding chip that has in much novel mobile terminal is also directly to be arranged on the mainboard of mobile terminal.The drawback of this set scheme needs to carry out integrated testability after being the audio encoding and decoding chip is connected in mainboard, if the problem that tests out is modified, need to comprehensively revise mainboard.When on Mobile terminal main board, multiple components and parts being set (this is ubiquitous situation), the test repeatedly of multimode can cause the R﹠D cycle long, and R﹠D costs are high.
Audio encoding and decoding chip and interlock circuit are integrated into the module that can be connected in Mobile terminal main board, test in R﹠D process can be carried out take module as unit, this has just saved R﹠D cycle and R﹠D costs greatly, also highly beneficial for upgrading or personalized customization that module is follow-up, can be on the large impact of the whole generation of mobile terminal.
Be module with the audio encoding and decoding integrated chip in mobile terminal, the problem that needs solve be by to the rational layout of the pin of module to weaken or to eliminate electromagnetic interference (EMI) and electromagnetic compatibility (EMC) between each circuit.
Summary of the invention
The electromagnetic interference and the electromagnetic compatibility problem that run into when in order to solve, the audio encoding and decoding integrated chip being module, the invention provides a kind of audio encoding and decoding module of mobile terminal, reduce or eliminated electromagnetic interference between each pin signal of module by the rational sorting to pin.
Technical scheme of the present invention is as follows:
The audio encoding and decoding module of mobile terminal comprises the package body structure of built-in audio encoding and decoding chip and the pin of packaging body periphery, and the layout of described pin comprises the following sequence of sequence successively:
Sequence number 6 pins, IIS bus data output channel;
Sequence number 24 pins, FM aerial signal path;
Described packaging body is rectangle or square tabular body, and rectangle or foursquare four edges are respectively edge a, edge b, edge c, edge d; Described pin is arranged at the edge of rectangle or square packaging body, and sequence number 1 to sequence number 9 pins are arranged at the same edge a of packaging body; Sequence number 10 to sequence number 17 pins are arranged at the same edge b of packaging body; Sequence number 18 to sequence number 23 pins are arranged at the same edge c of packaging body; Sequence number 24 to sequence number 32 pins are arranged at the same edge d of packaging body.
Technique effect of the present invention:
Technical scheme of the present invention adopts following several principles to realize purpose of the present invention:
1, nearby principle: paired differential signal path pin is set together and makes between signal interact (EMI and EMC, as follows) little; The pin that need to be connected with the outer same circuit of audio encoding and decoding module arranges nearby, convenient common (in pairs) cabling.
2, insulation blocking: on the pin side of transmission of signal, ground wire is set and isolates, thereby the mutual electromagnetic that reduces between this base pin signal line and other holding wires is disturbed.
Can arrange concrete pin in following embodiment part and be described in detail to illustrate its technique effect.
Description of drawings
Fig. 1 is the pin layout figure of the audio encoding and decoding module of mobile terminal of the present invention.
Fig. 2 is the schematic block circuit diagram of the audio encoding and decoding module of mobile terminal of the present invention.
Embodiment
The present invention arranges the problem that can solve electromagnetic interference (EMI) and electromagnetic compatibility (EMC) by rational pin.
Below describe technical scheme of the present invention in detail with embodiment shown in Figure 1.The layout of concrete audio encoding and decoding module pin is seen following form.
Number of pins in Fig. 1 | Corresponding pin sequence number in technical solution of the present invention | Pin is described | |
1 | |
Receiver positive output path; Analog signal output (Analogue Output) | Receiver |
2 | |
Receiver negative output path; Analog signal output (Analogue Output) | The receiver |
3 | Without corresponding | The |
|
4 | |
Analog signal output path (Analogue Output) | Monophony simulation output (Mono analogue Output) |
5 | |
Analog signal output path (Analogue Output) | Monophony simulation output (Mono analogue Output) |
6 | Without corresponding | Power pin | Be the master |
7 | |
IIS bus data input channel; Numeral input (Digital Input) | IIS data input bus (DIB) (IIS-bus serial data input) |
8 | Sequence number 6 pins | IIS bus data output channel; Numeral output (Digital Output) | IIS data-out bus (IIS-bus serial data output) |
9 | |
PCM synchronizing signal path; Numeral defeated (Digital input) | Speech frame synchronous (Voice Codec Frame Sync) |
10 | |
Voice signal input channel (Sound Signal Input) | Audio input signal (Sound Signal Input) |
11 | |
Voice signal input channel (Sound Signal Input) | Audio input signal (Sound Signal Input) |
12 | |
The analog signal input channel; Voice signal input channel (Analogue Input) | Transmission forward differential received signal (RX mono differential input positive signal) |
13 | |
The analog signal input channel; Voice signal input channel (Analogue Input) | Transmission negative sense differential received signal (RX mono differential input negative signal) |
14 | Without corresponding | The |
|
15 | |
Mike's positive input path; Analog signal input (Analogue Input) | MIC positive input terminal (Mic Pre-amp Positive input) |
16 | |
Mike's negative input path; Analog signal input (Analogue Input) | MIC negative input end (Mic Pre-amp Negative input) |
17 | Without corresponding | The |
|
18 | |
Earphone Mike input channel; Analog signal input (Analogue Input) | Earphone Mike inputs (HP MIC Pre-amp input) |
19 | |
Earphone Mike interrupt signal path; Digital signal output (Digital | Earphone keystroke interrupts, high effectively (Answer Phone with MIC interrupt.Active High) |
output) | |||
20 | |
The PCM data output channel; Digital signal output (Digital output) | Speech simulation-digital translation output (Voice ADC Output) |
21 | |
PCM data input channel; Digital signal input (Digital Input) | Speech digit-analog-converted input (Voice DAC Input) |
22 | |
The iic bus data path; Digital signal I/O (Digital Input/Output) | IIC data I/O end (Control interface) |
23 | |
Iic bus clock signal path; Digital signal input (Digital Input) | IIC clock signal (Control interface) |
24 | Without corresponding | The |
|
25 | |
IIS bus left and right acoustic channels clock signal path; Digital signal I/O (Digital Input/Output) | The IIS bus run is selected clock (IIS-bus channel select clock) |
26 | Without corresponding | The |
|
27 | |
PCM clock signal path; Digital signal input (Digital Input) | PCM clock (PCM clock) |
28 | |
IIS bus clock signal path; Digital signal I/O (Digital Input/Output) | IIS bus clock (IIS-bus serial clock) |
29 | Without corresponding | The |
|
30 | |
The master clock signal path; Digital signal input (Digital Input) | The master clock signal (Master Clock Input for Module) of input audio encoding and |
31 | Without corresponding | The |
|
32 | Without corresponding | Power pin (Power supply) | The power supply of OP (Power for OP) |
33 | Sequence number 24 pins | FM aerial signal path (FM RF Input) | As far as possible near |
34 | |
Audio encoding and decoding module internal grounded circuit | Inner ground connection, but also ground connection of outside |
35 | |
Audio encoding and decoding module internal grounded circuit | Inner ground connection, but also ground connection of outside |
36 | |
FM reset signal path | FM reset (FM Reset) |
37 | |
FM clock signal path | 32.768 |
38 | |
Loud speaker positive output path; Analog signal output (Analogue Output) | Loud speaker positive output (SPEAKER output for Speaker) |
39 | |
Loud speaker negative output path; Analog signal output (Analogue Output) | Loud speaker negative output (SPEAKER output for Speaker) |
40 | Without corresponding | The |
|
41 | |
Earphone R channel output channel; Analog signal output (Analogue Output) | Earphone right wing output (Headphone Right Output) |
42 | |
Earphone L channel output channel; Mould | The left road output of earphone (Headphone |
Analog signal output (AnalogueOutput) | Left Output) | ||
43-58 | Without corresponding | The ground wire pin |
In table, abbreviation is described as follows:
PCM (Pulse Code Modulation----pulse code modulation).
IIS (Inter-IC Sound bus) claim again I2S, is the serial digital audio-frequency bus agreement that PHILIPS Co. proposes.
Iic bus is the abbreviation of English " Inter Integrated Circuit Bus " internal integrate circuit bus, is a kind of data highway system of serial.
As seen from Figure 1, the packaging body of audio encoding and decoding module is rectangle or square tabular body, rectangle or foursquare four edges are respectively edge a, edge b, edge c, edge d (four limits of packaging body in Fig. 1, corresponding order is left, down, right in Fig. 1, upper four limits); Described pin is arranged at the edge of rectangle or square packaging body, and sequence number 1 to sequence number 9 pins are arranged at the same edge a of packaging body; Sequence number 10 to sequence number 17 pins are arranged at the same edge b of packaging body; Sequence number 18 to sequence number 23 pins are arranged at the same edge c of packaging body; Sequence number 24 to sequence number 32 pins are arranged at the same edge d of packaging body.
Below technical meaning that each pin in upper table is arranged describe (sequence number that institute's foundation is described is number of pins in Fig. 1).
Pin one and a pair of differential signal of pin two transmission, setting meets above-mentioned nearby principle.
Pin one 0 and pin one 1 are set together and facilitate common cabling.
Pin one 2 and the pin one 3 a pair of differential signals of transmission, setting meets above-mentioned nearby principle.
Pin one 5 and the pin one 6 a pair of differential signals of transmission, setting meets above-mentioned nearby principle.
Pin one 4 and pin one 7 are the ground wire pin, and pin one 5 and pin one 6 are formed above-mentioned insulation blocking.
Pin two 0 and pin two 1 close on convenient common cabling are set.
Between pin two 3, pin two 5, pin two 7, the effect that the ground wire pin plays above-mentioned insulation blocking is set respectively.
Fig. 2 is the schematic block circuit diagram of audio encoding and decoding module of the present invention, label is the number of pins (number of pins in corresponding diagram 1) of drawing, audio encoding and decoding chip (CODEC in Fig. 2) model that adopts is WM8991, and Ou Sheng (WOLFSON) produces.The model of FM is SI47XX, and Silicon produces.
The layout of the pin in the present invention meets nearby principle and insulation blocking principle, effectively weakens or has eliminated electromagnetic interference (EMI) and electromagnetic compatibility (EMC) between each circuit through experiment showed.
Claims (1)
1. the audio encoding and decoding module of mobile terminal, comprise the package body structure of built-in audio encoding and decoding chip and the pin of packaging body periphery, it is characterized in that, the layout of described pin comprises the following sequence of sequence successively:
Sequence number 1 pin, receiver positive output path;
Sequence number 2 pins, receiver negative output path;
Sequence number 3 pins, the analog signal output path;
Sequence number 4 pins, the analog signal output path;
Sequence number 5 pins, IIS bus data input channel;
Sequence number 6 pins, IIS bus data output channel;
Sequence number 7 pins, PCM synchronizing signal path;
Sequence number 8 pins, the voice signal input channel;
Sequence number 9 pins, the voice signal input channel;
Sequence number 10 pins, the analog signal input channel;
Sequence number 11 pins, the analog signal input channel;
Sequence number 12 pins, Mike's positive input path;
Sequence number 13 pins, Mike's negative input path;
Sequence number 14 pins, earphone Mike input channel;
Sequence number 15 pins, earphone Mike interrupt signal path;
Sequence number 16 pins, the PCM data output channel;
Sequence number 17 pins, PCM data input channel;
Sequence number 18 pins, the iic bus data path;
Sequence number 19 pins, iic bus clock signal path;
Sequence number 20 pins, IIS bus left and right acoustic channels clock signal path;
Sequence number 21 pins, PCM clock signal path;
Sequence number 22 pins, IIS bus clock signal path;
Sequence number 23 pins, the master clock signal path;
Sequence number 24 pins, FM aerial signal path;
Sequence number 25 pins, audio encoding and decoding module internal grounded circuit;
Sequence number 26 pins, audio encoding and decoding module internal grounded circuit;
Sequence number 27 pins, FM reset signal path;
Sequence number 28 pins, FM clock signal path;
Sequence number 29 pins, loud speaker positive output path;
Sequence number 30 pins, loud speaker negative output path;
Sequence number 31 pins, earphone L channel output channel;
Sequence number 32 pins, earphone R channel output channel;
Described packaging body is rectangle or square tabular body, and rectangle or foursquare four edges are respectively edge a, edge b, edge c, edge d; Described pin is arranged at the edge of rectangle or square packaging body, and sequence number 1 to sequence number 9 pins are arranged at the same edge a of packaging body; Sequence number 10 to sequence number 17 pins are arranged at the same edge b of packaging body; Sequence number 18 to sequence number 23 pins are arranged at the same edge c of packaging body; Sequence number 24 to sequence number 32 pins are arranged at the same edge d of packaging body;
The layout of described pin is followed the insulation blocking principle: by the pin side at transmission of signal, ground wire is set and isolates, thereby the mutual electromagnetic that reduces between this base pin signal line and other holding wires is disturbed; And two edges by power pin and FM aerial signal path pin being separately positioned on packaging body are also separated by a distance, reduced influence degree between the two.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN200810188223XA CN101505167B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200720187364.0 | 2007-12-21 | ||
CN200720187364 | 2007-12-21 | ||
CN200810188223XA CN101505167B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
Publications (2)
Publication Number | Publication Date |
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CN101505167A CN101505167A (en) | 2009-08-12 |
CN101505167B true CN101505167B (en) | 2013-05-08 |
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Family Applications (8)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101882210A Expired - Fee Related CN101505165B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
CN2008101882174A Expired - Fee Related CN101505163B (en) | 2007-12-21 | 2008-12-19 | Telephone functional module for mobile terminal |
CN2008101882206A Expired - Fee Related CN101505164B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
CN200810188223XA Expired - Fee Related CN101505167B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
CN2008101882189A Expired - Fee Related CN101505176B (en) | 2007-12-21 | 2008-12-19 | Bluetooth module for mobile terminal |
CN2008101882225A Expired - Fee Related CN101505166B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
CNA200810188216XA Pending CN101505162A (en) | 2007-12-21 | 2008-12-19 | Wireless local area network module for mobile terminal |
CNA2008101882193A Pending CN101505531A (en) | 2007-12-21 | 2008-12-19 | Satellite positioning navigation module for mobile terminal |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
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CN2008101882210A Expired - Fee Related CN101505165B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
CN2008101882174A Expired - Fee Related CN101505163B (en) | 2007-12-21 | 2008-12-19 | Telephone functional module for mobile terminal |
CN2008101882206A Expired - Fee Related CN101505164B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101882189A Expired - Fee Related CN101505176B (en) | 2007-12-21 | 2008-12-19 | Bluetooth module for mobile terminal |
CN2008101882225A Expired - Fee Related CN101505166B (en) | 2007-12-21 | 2008-12-19 | Audio encoding and decoding module for mobile terminal |
CNA200810188216XA Pending CN101505162A (en) | 2007-12-21 | 2008-12-19 | Wireless local area network module for mobile terminal |
CNA2008101882193A Pending CN101505531A (en) | 2007-12-21 | 2008-12-19 | Satellite positioning navigation module for mobile terminal |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102143677B (en) * | 2010-01-29 | 2014-01-22 | 上海卫星工程研究所 | Ground system capable of reducing electromagnetic interference |
CN101984725A (en) * | 2010-11-17 | 2011-03-09 | 广州杰赛科技股份有限公司 | Wireless access device and method |
TWI727898B (en) * | 2019-11-05 | 2021-05-11 | 瑞昱半導體股份有限公司 | Multi-member bluetooth device be capable of synchronizing audio playback between different bluetooth circuits |
CN116936562B (en) * | 2023-09-14 | 2023-12-05 | 成都爱旗科技有限公司 | Chip packaging structure, wiFi6 chip and Internet of things equipment |
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EP0382948A1 (en) * | 1989-02-14 | 1990-08-22 | Koninklijke Philips Electronics N.V. | Supply pin rearrangement for an integrated circuit |
CN2171953Y (en) * | 1993-06-28 | 1994-07-13 | 上海裕利电信有限公司 | Numeral subscriber interface device |
CN1633228A (en) * | 2003-12-24 | 2005-06-29 | 上海贝岭股份有限公司 | An electromagnetic interference suppressive ground wiring method |
CN2888779Y (en) * | 2005-07-06 | 2007-04-11 | 深圳市融进科技有限公司 | GSM mobile phone with GPS |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1126522A1 (en) * | 2000-02-18 | 2001-08-22 | Alcatel | Packaged integrated circuit with radio frequency antenna |
US20020101817A1 (en) * | 2001-01-31 | 2002-08-01 | Joe Teixeira | System and method for providing analog telephone service when voice over IP over SDSL service is interrupted due to power failure |
CN1324847C (en) * | 2002-03-30 | 2007-07-04 | 中兴通讯股份有限公司 | System and method for multiplying real-time monitoring the same user |
EP1585352A1 (en) * | 2004-04-08 | 2005-10-12 | Alcatel Alsthom Compagnie Generale D'electricite | Wireless telecommunication terminal with at least two different communication interfaces and method for operating the same |
-
2008
- 2008-12-19 CN CN2008101882210A patent/CN101505165B/en not_active Expired - Fee Related
- 2008-12-19 CN CN2008101882174A patent/CN101505163B/en not_active Expired - Fee Related
- 2008-12-19 CN CN2008101882206A patent/CN101505164B/en not_active Expired - Fee Related
- 2008-12-19 CN CN200810188223XA patent/CN101505167B/en not_active Expired - Fee Related
- 2008-12-19 CN CN2008101882189A patent/CN101505176B/en not_active Expired - Fee Related
- 2008-12-19 CN CN2008101882225A patent/CN101505166B/en not_active Expired - Fee Related
- 2008-12-19 CN CNA200810188216XA patent/CN101505162A/en active Pending
- 2008-12-19 CN CNA2008101882193A patent/CN101505531A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0382948A1 (en) * | 1989-02-14 | 1990-08-22 | Koninklijke Philips Electronics N.V. | Supply pin rearrangement for an integrated circuit |
CN2171953Y (en) * | 1993-06-28 | 1994-07-13 | 上海裕利电信有限公司 | Numeral subscriber interface device |
CN1633228A (en) * | 2003-12-24 | 2005-06-29 | 上海贝岭股份有限公司 | An electromagnetic interference suppressive ground wiring method |
CN2888779Y (en) * | 2005-07-06 | 2007-04-11 | 深圳市融进科技有限公司 | GSM mobile phone with GPS |
Also Published As
Publication number | Publication date |
---|---|
CN101505166A (en) | 2009-08-12 |
CN101505163B (en) | 2013-02-20 |
CN101505176A (en) | 2009-08-12 |
CN101505164B (en) | 2013-02-20 |
CN101505165A (en) | 2009-08-12 |
CN101505163A (en) | 2009-08-12 |
CN101505164A (en) | 2009-08-12 |
CN101505166B (en) | 2012-09-05 |
CN101505167A (en) | 2009-08-12 |
CN101505531A (en) | 2009-08-12 |
CN101505162A (en) | 2009-08-12 |
CN101505165B (en) | 2012-09-19 |
CN101505176B (en) | 2012-09-05 |
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