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WM7236 Datasheet(PDF) 5 Page - Cirrus Logic

Part # WM7236
Description  Low Power Bottom Port Digital Silicon Microphone
PDF  14 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM7236 Datasheet(HTML) 5 Page - Cirrus Logic

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WM7236E
Rev 4.0
5
ACOUSTIC AND ELECTRICAL CHARACTERISTICS
Test Conditions: VDD=1.8V, 1kHz test signal, CLK=3.072MHz, CLOAD = 100pF, TA = 25°C, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Directivity
Omni-directional
Polarity
Positive sound pressure
Increasing density of 1s
Sensitivity
S
94dB SPL
-27
-26
-25
dBFS
Voice Mode: CLK=768kHz
Acoustic Overload
THD < 10%
120
dB SPL
Total Harmonic Distortion
THD
94dB SPL,
200Hz to 8kHz
0.05
%
118dB SPL,
200Hz to 8kHz
1
Signal to Noise Ratio
SNR
A-weighted,
200Hz to 8kHz
60
dB
Dynamic Range
DR
A-weighted,
200Hz to 8kHz
84
dB
Acoustic Noise Floor
A-weighted,
200Hz to 8kHz
34
dB SPL
Electrical Noise Floor
A-weighted,
200Hz to 8kHz
-86
dBFS
Power Supply Rejection
PSR
217Hz square wave,
100mV (peak-peak)
-70
dBFS
Hi-Fi Record Mode: CLK=3.072MHz
Acoustic Overload
THD < 10%
120
dB SPL
Total Harmonic Distortion
THD
94dB SPL
0.05
%
118dB SPL
1
Signal to Noise Ratio
SNR
A-weighted
63
dB
Dynamic Range
DR
A-weighted
87
dB
Acoustic Noise Floor
A-weighted
31
dB SPL
Electrical Noise Floor
A-weighted
-89
dBFS
Power Supply Rejection
PSR
217Hz square wave,
100mV (peak-peak)
-65
dBFS
Hi-Fi Record Mode (Ultrasonic operation): CLK=3.84MHz
Acoustic Overload
THD < 10%
120
dB SPL
Total Harmonic Distortion
THD
94dB SPL
0.05
%
118dB SPL
1
Signal to Noise Ratio
SNR
A-weighted
63
dB
Dynamic Range
DR
A-weighted
87
dB
Acoustic Noise Floor
A-weighted
31
dB SPL
Electrical Noise Floor
A-weighted
-89
dBFS
Power Supply Rejection
PSR
217Hz square wave,
100mV (peak-peak)
-65
dBFS
Frequency Response
Frequency Response
-3dB low frequency
55
70
85
Hz
+3dB high frequency
12000
Frequency Response Flatness
200Hz to 6kHz
-1
+1
dB



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