CN101964936A - 用于数字麦克风的处理芯片及其输入电路、数字麦克风 - Google Patents
用于数字麦克风的处理芯片及其输入电路、数字麦克风 Download PDFInfo
- Publication number
- CN101964936A CN101964936A CN2010105059111A CN201010505911A CN101964936A CN 101964936 A CN101964936 A CN 101964936A CN 2010105059111 A CN2010105059111 A CN 2010105059111A CN 201010505911 A CN201010505911 A CN 201010505911A CN 101964936 A CN101964936 A CN 101964936A
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- CN
- China
- Prior art keywords
- branch road
- pmos pipe
- input circuit
- source electrode
- microphone
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 33
- 230000011664 signaling Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 11
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/04—Microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
- H04R3/06—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electrostatic transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (9)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010505911 CN101964936B (zh) | 2010-10-09 | 2010-10-09 | 用于数字麦克风的处理芯片及其输入电路、数字麦克风 |
| US13/248,975 US9008332B2 (en) | 2010-10-09 | 2011-09-29 | Processing chip for a digital microphone and related input circuit and a digital microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010505911 CN101964936B (zh) | 2010-10-09 | 2010-10-09 | 用于数字麦克风的处理芯片及其输入电路、数字麦克风 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101964936A true CN101964936A (zh) | 2011-02-02 |
| CN101964936B CN101964936B (zh) | 2013-06-19 |
Family
ID=43517628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010505911 Active CN101964936B (zh) | 2010-10-09 | 2010-10-09 | 用于数字麦克风的处理芯片及其输入电路、数字麦克风 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US9008332B2 (zh) |
| CN (1) | CN101964936B (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114679666A (zh) * | 2022-04-01 | 2022-06-28 | 瑞声声学科技(深圳)有限公司 | 麦克风放大电路设计方法及麦克风放大电路 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681971B (zh) * | 2016-01-13 | 2018-12-11 | 瑞声光电科技(常州)有限公司 | 麦克风模拟集成电路 |
| DK3197046T3 (da) * | 2016-01-25 | 2021-07-05 | Sonion Nederland Bv | Selvforspændt output booster forstærker samt anvendelse deraf |
| US12253391B2 (en) | 2018-05-24 | 2025-03-18 | The Research Foundation For The State University Of New York | Multielectrode capacitive sensor without pull-in risk |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001196867A (ja) * | 1999-11-04 | 2001-07-19 | Teac Corp | オーディオ信号入力回路 |
| CN2694649Y (zh) * | 2004-04-05 | 2005-04-20 | 辅升电子科技(深圳)有限公司 | 可去除噪声的麦克风输入电路 |
| CN201307878Y (zh) * | 2008-11-05 | 2009-09-09 | 宇龙计算机通信科技(深圳)有限公司 | 一种模拟音频输入电路、移动通信终端和耳机 |
| CN201813516U (zh) * | 2010-10-09 | 2011-04-27 | 北京昆腾微电子有限公司 | 用于数字麦克风的处理芯片及其输入电路、数字麦克风 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19545760C1 (de) * | 1995-12-07 | 1997-02-20 | Siemens Audiologische Technik | Digitales Hörgerät |
| WO2002073792A2 (en) * | 2001-03-09 | 2002-09-19 | Techtronic A/S | An electret condensor microphone preamplifier that is insensitive to leakage currents at the input |
| JP4743570B2 (ja) * | 2001-04-10 | 2011-08-10 | ルネサスエレクトロニクス株式会社 | 電源回路を内蔵した半導体集積回路および液晶表示制御装置並びに携帯用電子機器 |
| US6888408B2 (en) * | 2002-08-27 | 2005-05-03 | Sonion Tech A/S | Preamplifier for two terminal electret condenser microphones |
| US6963140B2 (en) * | 2003-03-17 | 2005-11-08 | Analog Power Intellectual Properties | Transistor having multiple gate pads |
| WO2005039041A1 (en) * | 2003-10-14 | 2005-04-28 | Audioasics A/S | Microphone preamplifier |
| EP1742506B1 (en) * | 2005-07-06 | 2013-05-22 | Epcos Pte Ltd | Microphone assembly with P-type preamplifier input stage |
| ITTO20090495A1 (it) * | 2009-06-30 | 2011-01-01 | St Microelectronics Srl | Circuito preamplificatore per un trasduttore acustico capacitivo di tipo microelettromeccanico |
-
2010
- 2010-10-09 CN CN 201010505911 patent/CN101964936B/zh active Active
-
2011
- 2011-09-29 US US13/248,975 patent/US9008332B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001196867A (ja) * | 1999-11-04 | 2001-07-19 | Teac Corp | オーディオ信号入力回路 |
| CN2694649Y (zh) * | 2004-04-05 | 2005-04-20 | 辅升电子科技(深圳)有限公司 | 可去除噪声的麦克风输入电路 |
| CN201307878Y (zh) * | 2008-11-05 | 2009-09-09 | 宇龙计算机通信科技(深圳)有限公司 | 一种模拟音频输入电路、移动通信终端和耳机 |
| CN201813516U (zh) * | 2010-10-09 | 2011-04-27 | 北京昆腾微电子有限公司 | 用于数字麦克风的处理芯片及其输入电路、数字麦克风 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114679666A (zh) * | 2022-04-01 | 2022-06-28 | 瑞声声学科技(深圳)有限公司 | 麦克风放大电路设计方法及麦克风放大电路 |
| CN114679666B (zh) * | 2022-04-01 | 2023-04-18 | 瑞声声学科技(深圳)有限公司 | 麦克风放大电路设计方法及麦克风放大电路 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101964936B (zh) | 2013-06-19 |
| US9008332B2 (en) | 2015-04-14 |
| US20120250898A1 (en) | 2012-10-04 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: KUNTENG MICROELECTRONIC CO., LTD. Free format text: FORMER NAME: BEIJING KUNTENG MICRO-ELECTRONICS INC. Owner name: BEIJING KUNTENG MICRO-ELECTRONICS INC. Free format text: FORMER NAME: KT MICRO, INC. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100097 Beijing city Haidian District landianchang Road No. 2 Jin Yuan Business Center Building 2, block B, floor 8, B Patentee after: Beijing Kunteng electronic Limited by Share Ltd. Address before: 100097 Beijing city Haidian District landianchang Road No. 2 Jin Yuan Business Center Building 2, block B, floor 8, B Patentee before: KT MICRO Inc. (BEIJING) |
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| CP03 | Change of name, title or address |
Address after: 100195 Beijing, Yuquan, No. 23 Haidian District Road, building No. 4 Patentee after: KT MICRO, Inc. Address before: 100097 Beijing city Haidian District landianchang Road No. 2 Jin Yuan Business Center Building 2, block B, floor 8, B Patentee before: Beijing Kunteng electronic Limited by Share Ltd. |