參數(shù)資料
型號: ADMP405ACEZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 12/13頁
文件大?。?/td> 0K
描述: MIC MEMS OMNI-DIR ANALOG 3-LGA
標準包裝: 1
系列: ADMP405
類型: MEMS(硅)
輸出類型: 模擬
方向: 全向
頻率范圍: 200Hz ~ 15kHz
靈敏度: -38dB ±3dB
信噪比: 62dB
阻抗: 200 歐姆
電壓 - 額定: 1.5 ~ 3.3V
電流 - 電源: 250µA
端口位置: 底部
密封等級:
端子: 表面貼裝型
尺寸/尺寸: 3.35mm L x 2.50mm W
高度(最大): 0.98mm
形狀: 矩形
包裝: 標準包裝
配用: EVAL-ADMP405Z-FLEX-ND - BOARD EVALUATION FOR ADMP405
其它名稱: ADMP405ACEZ-RLDKR
Data Sheet
ADMP405
Rev. B | Page 7 of 12
APPLICATIONS INFORMATION
CONNECTING TO ANALOG DEVICES, INC., AUDIO
CODECS
The ADMP405 output can be connected to a dedicated codec
microphone input (see Figure 7) or to a high input impedance
gain stage (see Figure 8). A 0.1 μF ceramic capacitor placed close
to the ADMP405 supply pin is used for testing and is recom-
mended to adequately decouple the microphone from noise on
the power supply. A dc-blocking capacitor is required at the
output of the microphone.
0
902
7-
0
20
ADAU1761
OR
ADAU1361
ADMP405
VDD
GND
OUTPUT
LINN
LINP
MICBIAS
CM
2.2F
MINIMUM
0.1F
Figure 7. ADMP405 Connected to the Analog Devices ADAU1761 or
09
02
7-
0
21
GAIN = (R1 + R2)/R1
ADMP405
VDD
GND
OUTPUT
1F
MINIMUM
0.1F
VOUT
VREF
OP177
10k
R1
R2
Figure 8. ADMP405 Connected to the OP177 Op Amp
SUPPORTING DOCUMENTS
Evaluation Board User Guide
UG-143, EVAL-ADMP405Z-FLEX: Bottom-Ported Analog
Output MEMS Microphone Evaluation Board
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
OBSOLETE
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