AS3525-A/-B C22O22
Data Sheet, Confidential
7.4.8.5 Parameter
Table 121 Microphone Inputs Parameter
Symbol
A0
Parameter
Notes
programmable gain
Min
Typ
Max Unit
Gain
-40.5
6
dB
dB
Gain Step-Size
1.5
15
Ax
RinMIC
Input Resistance
MicAmp_Gain0
differential
kOhm
dB
AMIC
AMIC
AMIC
0
1
2
28
MicAmp_Gain1
34
dB
MicAmp_Gain2
40
dB
SoftClip_AGC_Range
Attack_Time
15*2.0
60
dB
us
Release_Time
120
40
ms
VInnom
VInnom
VInnom
SNR
0
1
2
Nominal_Input_Voltage0
Nominal_Input_Voltage1
Nominal_Input_Voltage2
Signal to Noise Ratio
Mute Attenuation
MicInGain = 0dB, MicAmp_Gain0
MicInGain = 0dB, MicAmp_Gain1
MicInGain = 0dB, MicAmp_Gain2
mVp
mVp
mVp
dB
20
10
90
120
dB
Microphone Supply
VMICsup
IMIClim
IMICdet
IREMdet
Vnoise
Microphone Supply Voltage
0-4mA
2.95
10
V
Mic. Supply Current Limit
Mic. Detection Current
Remote Detection Current
Voltage Noise
mA
uA
uA
uV
50
microphone supply current step
500
5.7
BVDD = 3.3V, TA= 25oC unless otherwise mentioned
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