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UX-L46V/UX-L36V
BA3837 (IC902) : MIC mixer
1. Block diagram
C
16
1
VCC
2. Pin function
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1-38
B
ROUT
A
15
13
14
-
LOGIC
SW2
-
+
+
-
2
3
4
MIC
LOUT
FK
Symbol
I/O
Power supply
VCC
-
Microphone mixing input
MIC IN
I
Channel L output
LOUT
O
Non connect
FK
-
Non connect
TK
-
Channel L input
LIN
I
Signal bias
BIAS
I
Connect to GND
GND
-
Channel R input
RIN
I
Connects to LPF time constant element
LPF1
O
Connects to LPF time constant element
LPF2
O
LPF outpout
LPF3
O
Channel R output
ROUT
O
Mode select input A
CONTA
I
Mode select input B
CONTB
I
Mode select input C
CONTC
I
LP
LP
12
11
-
+
+
R
L+R
-
SW1
+
L-R
L
+
-
6
5
LIN
TK
Description
LP
RIN
10
9
-
+
+
7
8
BIAS
GND
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