CN101902673A - 麦克风接口电路 - Google Patents
麦克风接口电路 Download PDFInfo
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- CN101902673A CN101902673A CN2010102243705A CN201010224370A CN101902673A CN 101902673 A CN101902673 A CN 101902673A CN 2010102243705 A CN2010102243705 A CN 2010102243705A CN 201010224370 A CN201010224370 A CN 201010224370A CN 101902673 A CN101902673 A CN 101902673A
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- microphone
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- interface circuit
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- impedance
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- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Circuit For Audible Band Transducer (AREA)
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201010224370.5A CN101902673B (zh) | 2010-07-09 | 2010-07-09 | 麦克风接口电路 |
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CN201010224370.5A CN101902673B (zh) | 2010-07-09 | 2010-07-09 | 麦克风接口电路 |
Publications (2)
Publication Number | Publication Date |
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CN101902673A true CN101902673A (zh) | 2010-12-01 |
CN101902673B CN101902673B (zh) | 2014-06-18 |
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CN201010224370.5A Expired - Fee Related CN101902673B (zh) | 2010-07-09 | 2010-07-09 | 麦克风接口电路 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102611974A (zh) * | 2012-03-09 | 2012-07-25 | 无锡纳讯微电子有限公司 | Mems麦克风电路、上位机电路以及进入编程模式的方法 |
CN104038865A (zh) * | 2014-03-14 | 2014-09-10 | 宁波萨瑞通讯有限公司 | 一种麦克风检测电路及其移动终端设备 |
CN104640038A (zh) * | 2013-11-06 | 2015-05-20 | 英飞凌科技股份有限公司 | 用于mems换能器的***和方法 |
CN105681971A (zh) * | 2016-01-13 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | 麦克风模拟集成电路 |
CN110740411A (zh) * | 2019-10-22 | 2020-01-31 | 苏州芯仪微电子科技有限公司 | 接口电路、微机电声学传感器和接口电路的驱动方法 |
CN113286239A (zh) * | 2021-05-25 | 2021-08-20 | 维沃移动通信有限公司 | 用于麦克风的电压输出方法、装置、麦克风和电子设备 |
CN113541480A (zh) * | 2021-09-15 | 2021-10-22 | 武汉市聚芯微电子有限责任公司 | 稳压型功率调节电路、功率调节装置及电子装置 |
CN114222232A (zh) * | 2021-12-31 | 2022-03-22 | 杭州士兰微电子股份有限公司 | Mems***及信号处理电路 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2867747Y (zh) * | 2006-01-09 | 2007-02-07 | 中亿源科技(深圳)有限公司 | 单向麦克风语音背景噪声抑制电路 |
US20090232335A1 (en) * | 2008-03-13 | 2009-09-17 | Kabushiki Kaisha Audio-Technica | Condenser microphone |
CN101640829A (zh) * | 2008-07-30 | 2010-02-03 | 中国科学院声学研究所 | 一种用于mems麦克风的数字前置放大器 |
-
2010
- 2010-07-09 CN CN201010224370.5A patent/CN101902673B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2867747Y (zh) * | 2006-01-09 | 2007-02-07 | 中亿源科技(深圳)有限公司 | 单向麦克风语音背景噪声抑制电路 |
US20090232335A1 (en) * | 2008-03-13 | 2009-09-17 | Kabushiki Kaisha Audio-Technica | Condenser microphone |
CN101640829A (zh) * | 2008-07-30 | 2010-02-03 | 中国科学院声学研究所 | 一种用于mems麦克风的数字前置放大器 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102611974A (zh) * | 2012-03-09 | 2012-07-25 | 无锡纳讯微电子有限公司 | Mems麦克风电路、上位机电路以及进入编程模式的方法 |
CN102611974B (zh) * | 2012-03-09 | 2014-05-07 | 无锡纳讯微电子有限公司 | Mems麦克风电路 |
CN104640038A (zh) * | 2013-11-06 | 2015-05-20 | 英飞凌科技股份有限公司 | 用于mems换能器的***和方法 |
US10589987B2 (en) | 2013-11-06 | 2020-03-17 | Infineon Technologies Ag | System and method for a MEMS transducer |
US11225408B2 (en) | 2013-11-06 | 2022-01-18 | Infineon Technologies Ag | System and method for a mems transducer |
CN104038865A (zh) * | 2014-03-14 | 2014-09-10 | 宁波萨瑞通讯有限公司 | 一种麦克风检测电路及其移动终端设备 |
CN105681971A (zh) * | 2016-01-13 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | 麦克风模拟集成电路 |
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 |
CN110740411A (zh) * | 2019-10-22 | 2020-01-31 | 苏州芯仪微电子科技有限公司 | 接口电路、微机电声学传感器和接口电路的驱动方法 |
CN113286239A (zh) * | 2021-05-25 | 2021-08-20 | 维沃移动通信有限公司 | 用于麦克风的电压输出方法、装置、麦克风和电子设备 |
CN113541480A (zh) * | 2021-09-15 | 2021-10-22 | 武汉市聚芯微电子有限责任公司 | 稳压型功率调节电路、功率调节装置及电子装置 |
CN114222232A (zh) * | 2021-12-31 | 2022-03-22 | 杭州士兰微电子股份有限公司 | Mems***及信号处理电路 |
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Publication number | Publication date |
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CN101902673B (zh) | 2014-06-18 |
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Effective date of registration: 20190611 Address after: 518057 Building A, Shenzhen Industry, Education and Research Building, Nanjing University, No. 6 Sandao, Yuexing, Nanshan High-tech Zone, Shenzhen, Guangdong Province Patentee after: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Address before: Room 612, Building D, Pioneer Park, 2 Shangdi Information Road, Haidian District, Beijing 100085 Co-patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee before: BEIJING EASTMICRO TECHNOLOGY Co.,Ltd. |
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