SAMHOP Microelectronics Corp.
6 CHANNELS VOLUME CONTROLLER
SM7347
PIN DESCRIPTION (Pin count base on 42pin SDIP)
Pin No.
1
2
3
4
5
7
10
12
13
14
15
17
6
8
9
11
16
18
36
35
34
33
32
31
29
30
37
38
39
40
41
42
Symbol
OUT4
OUT3
OUT2
OUT1
AVDD
GNDS
GNDC
GNDR1
GNDR2
GNDL1
GNDL2
GNDLR
SW in
SR in
SL in
C in
R in
L in
SW out
SR out
SL out
C out
R out
L out
AVSS2
AVSS1
AGND
DGND
LATCH
DATA
CLK
DVDD
Analog negative Power supply
Analog GND
Digital GND
Latch INPUT
Data INPUT
Clock INPUT Fowrward data
Digital Power supply
39,40,41
S
INPUT:schmitt trigger type
+5V
-7V
Volume OUTPUT
Volume INPUT
6,8,9,11,16,18
18 to 22 K
Ω
(TYP)
Function
OUTPUT: PMOS
Transistor
open drain
Circuit
DVDD(=5V)
1 to 4
Port OUTPUT
Analog positive Power supply
+7V
GND
Connect to analog GND
31~36
Page 3
MAY.2003
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
