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  • underlay image _0046_GTA2718B-3.igs.jpg

  • MEMS

GTD2718BA-1

The GTD2718BA-1 is a small package, 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

  • 2.75x1.85x0.90mm Bottom Port

  • 1-bit PDM Output

  • Narrow Sensitivity +/-1dBFS

  • High SNR of 62dBA

  • 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
ΔSSensitivitydrop<0.5dBFS
S/N20-5KHz Bandwidth, A Weighted
64
dB(A)
20-8KHz Bandwidth, A Weighted
63
dB(A)
20-20KHz Bandwidth, A Weighted6062
dB(A)
THD94dB SPL @1KHz
0.150.5%
113dBSPL@1KHz
1
%
AOP10%THD@1KHz
122
dBSPL
PSRMeasuredwith217Hz,100mVppsquarewave

-75dBFS
Note：Frequency response, sensitivity and current consumption are tested by 100% on product line.


应用实例

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    头戴耳机
b1_back1.jpg f1_img066.jpg

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