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CS7331 Datenblatt(PDF) 5 Page - Cirrus Logic

Teilenummer CS7331
Bauteilbeschribung  Miniature Bottom Port Analog MEMS Microphone
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Hersteller  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

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5
DS1165F1
CS7331P
3 Characteristics and Specifications
Table 3-3. Absolute Maximum Ratings
Absolute maximum ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits.
Device functional operating limits and guaranteed performance specifications are given under electrical characteristics at the test conditions specified.
Parameter
Symbol
Min
Max
Units
Supply voltage 1
1.All voltages are measured with respect to GND.
VDD
–0.3
4.2
V
Operating temperature range
TA
–40
+105
ºC
Storage temperature prior to soldering
TStgp
—30
ºC
Storage relative humidity prior to soldering
RHStgp
—60
%
Storage temperature after soldering
TStg
–40
+105
ºC
ESD-sensitive device. The CS7331P is manufactured on a CMOS process. It is therefore generically susceptible to damage from
excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device. This device is
qualified to current JEDEC ESD standards
Table 3-4. Acoustic and Electrical Characteristics
Test conditions (unless specified otherwise): GND = 0 V; voltages are with respect to ground; performance data taken with VDD = 1.8 V, RL = 10 k,
CL = 100 pF, TA = +25ºC, 55 ±15% RH; 1 kHz test signal.
Parameter 1
1.All performance measurements are specified with a 20-kHz, low-pass brick-wall filter and, where noted, an A-weighted filter. The low-pass filter
removes out-of-band noise.
Min
Typ
Max
Units
Directivity
Omnidirectional
Polarity
Positive sound pressure
Positive output voltage
Sensitivity
–39
–38
–37
dBV
Acoustic overload
THD < 10%
124
dB SPL
THD
94 dB SPL
114 dB SPL
120 dB SPL
0.04
0.3
1
%
%
%
SNR
A-weighted
63
dB
DR
A-weighted
93
dB
Acoustic noise floor
A-weighted
31
dB SPL
Electrical noise floor
A-weighted
–101
dBV
PSRR (with respect to VDD)
217 Hz sine wave, 100 mV (peak-peak)
62
dB
PSR (with respect to VDD)
217 Hz square wave, 100 mV (peak-peak)
–88
dBV
Frequency response
–3 dB low frequency
+3 dB high frequency
85
15
Hz
kHz
Frequency response flatness
200 Hz–7 kHz
–1
+1
dB
Part-to-part phase matching
80–100 Hz
200 Hz
±10
±5
°
°
Current consumption
—55
60
A
Output DC impedance
200
400


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