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| 型号： | EVAL-ADMP421Z |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL ADMP421 |
| 标准包装： | 1 |
| 系列： | iMEMS® |
| 主要目的： | 音频，MEMS 全向麦克风 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADMP421 |
| 主要属性： | 数字输出，100Hz ~ 10kHz 频率响应 |
| 次要属性： | -26dB 灵敏度，60.5dB SNR |
| 已供物品： | 板 |
Omnidirectional Microphone with
Bottom Port and Digital Output
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2010–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Small and thin 3 mm × 4 mm × 1 mm surface-mount package
High SNR of 61 dBA
High sensitivity of 26 dBFS
Flat frequency response from 100 Hz to 15 kHz
Low current consumption: <650 A
Sleep mode for extended battery life
High PSR of 80 dBFS
Fourth-order Σ-Δ modulator
Digital PDM output
Compatible with Sn/Pb and Pb-free solder processes
RoHS/WEEE compliant
APPLICATIONS
Smartphones and feature phones
Teleconferencing systems
Digital video cameras
Bluetooth headsets
Video phones
Tablets
GENERAL DESCRIPTION
The ADMP421 is a high performance, low power, digital output
bottom-ported omnidirectional MEMS microphone. The
ADMP421 consists of a MEMS microphone element and an
impedance converter amplifier followed by a fourth-order Σ-Δ
modulator. The digital interface allows for the pulse density
modulated (PDM) output of two microphones to be time-
multiplexed on a single data line using a single clock.
The ADMP421 has a high SNR and high sensitivity, making it
an excellent choice for far field applications. The ADMP421 has
a flat wideband frequency response, resulting in natural sound
with high intelligibility. Low current consumption and a sleep
mode enable long battery life for portable applications. A built-
in particle filter provides high reliability. The ADMP421 complies
with the TIA-920 Telecommunications Telephone Terminal
Equipment Transmission Requirements for Wideband Digital
Wireline Telephones standard.
The ADMP421 is available in a thin 3 mm × 4 mm × 1 mm
surface-mount package. It is reflow solder compatible with no
sensitivity degradation. The ADMP421 is halide free.
FUNCTIONAL BLOCK DIAGRAM
ADMP421
ADC
POWER
MANAGEMENT
CLK
DATA
V
DD
G
ND
PDM
MODULATOR
CHANNEL
SELECT
L
/R
SEL
EC
T
07596-
001
Figure 1.
OBSOLETE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADMP421Z | 制造商:Analog Devices 功能描述:Omnidirectional Microphone Eval. Board |
| EVAL-ADMP421Z-FLEX | 功能描述:BOARD EVALUATION FOR ADMP421 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:iMEMS® 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-ADMP441Z | 功能描述:BOARD EVAL FOR ADM441Z RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:iMEMS® 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVAL-ADMP441Z-FLEX | 功能描述:EVAL BOARD FOR ADMP441 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:iMEMS® 标准包装:1 系列:- 主要目的:数字电位器 嵌入式:- 已用 IC / 零件:AD5258 主要属性:- 次要属性:- 已供物品:板 相关产品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| EVAL-ADMP504Z-FLEX | 功能描述:EVAL BOARD FOR ADMP504 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:iMEMS® 标准包装:1 系列:- 主要目的:数字电位器 嵌入式:- 已用 IC / 零件:AD5258 主要属性:- 次要属性:- 已供物品:板 相关产品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
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