MX-GT91R
1-34
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
BIASC
VREFC
RPEF
NC
NC
NC
CIN
AIN
VCC
SPI-A
SPI-B
SPI-C
SPICSB
NC
NC
TEST
AOUT
GND
Decoupling condenser connection terminal.
Decoupling condenser connection terminal.
Reference resistance connection terminal.
Non connect.
Non connect.
Non connect.
Connected to GND of audio system through a condenser.
Inputs the audio signal through a condenser.
Power supply terminal.
Output selection control terminal.
Output selection control terminal.
Output selection control terminal.
Output selection control terminal.
Non connect.
Non connect.
Connected to GND upon normal use.
Multi-plexor output terminal.
Connect to GND.
-
-
-
-
-
-
-
I
-
O
O
O
O
-
-
-
O
-
No.
Symbol
I/O
Function
2.Pin Function
1.Block Diagrams
BA3835S (IC812) : SPI B.P.F.
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
BIAS
VREF
REFERENCE
CURRENT
MPX
A-C
RES
PEAK
HOLD
105Hz
BPF
RES
PEAK
HOLD
340Hz
BPF
RES
PEAK
HOLD
1kHz
BPF
RES
PEAK
HOLD
3.4kHz
BPF
RES
PEAK
HOLD
10.5kHz
BPF
DIF
DEC
BIASC
VREFC
RREF
N.C.
N.C.
DIFOUT
CIN
AIN
VCC
A
B
C
SEL
N.C.
N.C.
TEST
AOUT
GND
