VV6501 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'VV6501' PDF : 60 Pages View PDF
VV6501
Functional Description
3.2.2
Audio amplifier key features
q Very high PSRR micro bias reference due to bandgap from the 3.3V regulated supply, as well
as RC network for LF filtering in the audio bandwidth.
q Fully differential low-noise amplifier with gain control via serial IF (0dB to +42dB in 6dB steps).
Up to 1.8Vpp dynamic range on AUDOUTP and AUDOUTN
Figure 18: VV6501 audio amplifier in typical application
V5V
AUDREF
100nF
Electret
Mic
MICBIAS
R
MICIN
Cin
470nF
Audio
regulator
Power management AUD3V3
2.2uF
AUD3V3
x1.3
1 buffer
Audio
Audio
pd
bandgap
Gain[2:0]
0:42dB
AUDOUTP
Cc
220nF
LNA
AUDOUTN
Cc
220nF
STV0674
differential ADC
input
50K stage
50K
23/60
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