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  • MEMS

GTD3526BA-1N

The GTD3526BA-1N is a small package, high SNR and Multimode bottom port digital MEMS microphone with 1-bit PDM output, consists of a MEMS sensor, a low noise level amplifier, and a ∑-△ modulator.

Features

  • 3.5x2.65x0.98mm Bottom Port

  • 1-bit PDM Output

  • Narrow Sensitivity +/-1dBFS

  • High SNR of 65dBA

  • LFRO <20Hz

  • 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 Frequency1.32.44.8MHz
IDDSupply Current1
770900uA
SSensitivity3,94dBSPL@1KHz-27-26-25dBFS2
ΔSSensitivity<0.5dBFS
SNR20-5KHz Bandwidth, A-Weighted
68
dB(A)
20-8KHz Bandwidth, A-Weighted
66.5
dB(A)
20-20KHz Bandwidth, A-weighted6365
dB(A)
THD94dB SPL @1KHz
0.150.5%
115dB SPL@1KHz
1
%
AOP10%THD@1KHz
121
dBSPL
PSRMeasuredwith217Hz,100mVppsquarewave
-90-80dBFS
PSRRMeasured with 1KHz,200mVpp sinewave
60
dBFS
Note：Frequency response, sensitivity and current consumption are tested by 100% on product line.


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