SAMHOP Microelectronics Corp.
6 CHANNELS VOLUME CONTROLLER
SM7347
GENERAL DESCRIPTION
The SM7347 is 6 channels electronic volume
controlled by 3-wire serial data. The IC is suitable
for use in DVD systems and AV.
FEATURES
* 4 Output ports
* Built-in microcomputer interface circuit con-
trolled by 16-bit serial data.
* Electronic volume
Volume level......0dB~-79dB, -
∞
dB(1dB/
step)
APPLICATIONS
* DVD
* Home Audio equipment
* AV
PIN ASSIGNMENTS
OUT4
OUT3
OUT2
OUT1
AVDD
SWin
GNDS
SRin
SLin
GNDC
Cin
GNDR1
GNDR2
GNDL1
GNDL2
Rin
GNDLR
Lin
NC
NC
NC
1
2
3
4
5
6
7
8
9
1
0
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
DVDD
CLK
DATA
LATCH
DGND
AGND
SWout
SRout
SLout
Cout
Rout
Lout
AVSS1
AVSS2
NC
NC
NC
NC
NC
NC
NC
SDIP 42PIN
Page 1
MAY.2003
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
