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Pin Description
Pin No.
Pin Description
1
GND
2
ALC input
3
STANDBY CTL
4
MIC output
5
MIC input
6
Ripple removal for VREF
7
Internal MIC power supply
8
ALC DET
9
REC output
10
VCC
LA74309TT
Equivalent Circuit Block Diagram & Application Circuit
REC OUT
VCC3.3V
0.47µF
4.7µF
10
9
REG
LPF
VCCA
3.0V
ALC
8
7
2.2kΩ
MIC VCC
CHARGE
6
VREF
DET
-
+
1
2
3
4
5
GND
MIC IN
0.01µF
0.01µF MIC
STANDBY
CTL
ILA07158
No.A0903-3/5