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  • MEMS

MD-HRA461-H10-1

The MD-HRA461-H10-1 is a high SNR, high AOP and multi mode bottom port digital MEMS microphone with 1-bit PDM output, consists of a dual back-plate MEMS sensor and a low noise level amplifier, and a ∑-△ modulator.

Features

  • 3.5x2.65x0.98mm Bottom Port

  • PDM Output

  • Narrow Sensitivity +/-1dBFS

  • High SNR of 65dBA

  • High AOP of 135dBSPL

  • Flat Frequency Performance

  • Multi Mode(Sleep,Low power,Normal)

  • Compatible with Standard SMD Reflow Technology

  • RoHS Compliance & Halogen Free

Performance Parameters

Symbol
Dtion
Min
Nom.
MaxUnit
FCLKClock Frequency1.382.43.3MHz
IDDSupply Current1
8501100uA
SSensitivity3,94dBSPL@1KHz-47-46-45dBFS2
SNR20-20KHz Bandwidth, A-weighted6365
dBFS
THD94dB SPL @1KHz
0.050.5%
129dB SPL@1KHz
1
%
AOP10%THD@1KHz
135
dBSPL
PSR

Measured with 217Hz

100mVpp squarewave


-110-90dBFS
Note：Frequency response, sensitivity and current consumption are tested by 100% on product line.


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