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| 型號： | EVAL-ADMP421Z |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL ADMP421 |
| 標準包裝： | 1 |
| 系列： | iMEMS® |
| 主要目的： | 音頻，MEMS 全向麥克風 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADMP421 |
| 主要屬性： | 數(shù)字輸出，100Hz ~ 10kHz 頻率響應 |
| 次要屬性： | -26dB 靈敏度，60.5dB SNR |
| 已供物品： | 板 |
ADMP421
Data Sheet
Rev. D | Page 10 of 16
APPLICATIONS INFORMATION
INTERFACING WITH ANALOG DEVICES CODECS
codecs feature digital microphone inputs that support the
ADMP421 PDM output data format. See the connection
diagrams shown in Figure 12, and refer to the AN-1003
Application Note and the codecs’ respective data sheets for
more details on the digital microphone interface.
SLEEP MODE
The microphone enters sleep mode when the clock is turned off
or the clock frequency falls below 1 kHz. In sleep mode, the
microphone data output is in high impedance state and the
current consumption is less than 50 A.
POWER SAVINGS WHEN DISABLING ONE
MICROPHONE IN A MULTIMICROPHONE
APPLICATION
The ADMP421 has a unique power-saving feature when used in
systems where two or more microphones share the same clock
and/or data lines. The microphone is designed to present high
impedance on both the clock and data pins when the power
supply (VDD) pin is at 0 V or floating. This disabled microphone
presents no load to and consumes no power from other active
microphones.
SUPPORTING DOCUMENTS
Evaluation Board User Guides
UG-118, EVAL-ADMP421Z Bottom Port Digital Output MEMS
Microphone Evaluation Board
UG-183, EVAL-ADMP421Z-FLEX: Bottom-Ported Digital
Output MEMS Microphone Evaluation Board
Circuit Note
CN-0078, iMEMS Digital Microphone Simplifies the Interface to
a SigmaDSP Audio Codec
Application Notes
AN-1003, Recommendations for Mounting and Connecting
Analog Devices, Inc., Bottom-Ported MEMS Microphones
AN-1068, Reflow Soldering of the MEMS Microphone
AN-1112, Microphone Specifications Explained
AN-1124, Recommendations for Sealing Analog Devices, Inc.,
Bottom-Port MEMS Microphones from Dust and Liquid Ingress
ADMP421
CLK
VDD
L/R SELECT
GND
DATA
0.1F
ADMP421
CLK
VDD
L/R SELECT
GND
DATA
0.1F
MICBIAS
AVDD
1.8V TO 3.3V
JACKDET/MICIN
BCLK/GPIO2
ADAU1361
OR
ADAU1761
07596-
010
DGND
AGND
Figure 12. ADAU1361 and ADAU1761 Stereo Interface Block Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:iMEMS® 標準包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
| EVAL-ADMP441Z | 功能描述:BOARD EVAL FOR ADM441Z RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:iMEMS® 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| EVAL-ADMP441Z-FLEX | 功能描述:EVAL BOARD FOR ADMP441 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:iMEMS® 標準包裝:1 系列:- 主要目的:數(shù)字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關(guān)產(chǎn)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 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:iMEMS® 標準包裝:1 系列:- 主要目的:數(shù)字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關(guān)產(chǎn)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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