Silan
Semiconductors
ELECTRONIC VOLUME
DESCRIPTION
The SC9235 and SC9235S are an optimum CMOS IC which
has been designed for electronization of volume control of audio
equipment, etc.
SC9235
SOP-16
FEATURES
* Attenuation can be controlled from 0dB to -78dB by up, down
input.
* This IC have 20dB tap for loudness circuit.
* This IC features a built-in DC output circuit (7 level) for volume
level meter.
* Polysilicon resistors enables low-distortion, high-performance
volume systems.
* Volume level remains in backup mode with low current
consumption.
* Package is DIP16 and SOP16.
DIP-16
ORDERING INFORMATION
SC9235
SC9235S
DIP-16 Package
SOP-16 Package
PIN CONFIGURATION
BLOCK DIAGRAM
V
SS
OUT-1
IN-1
1
2
3
4
5
DECODER
D-A
CONVERTER
16
15
14
13
12
V
DD
OUT-2
IN-2
TP-2
GND-2
V
SS
OUT-1
IN-1
TP-1
GND-1
UP
DN
OSC
1
2
3
4
SC9235
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
OUT-2
IN-2
TP-2
GND-2
DC-OUT
INH
INT
TP-1
GND-1
UP
DN
6
7
11
UP/DOWN
COUNTER
DC-OUT
10
CONTROL
INH
OSC
8
9
INT
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
1
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
