SM7153 データシートの表示（PDF） - Samhop Mircroelectronics
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SM7153 Datasheet PDF : 9 Pages
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三合微科股份有限公司
SM7153
SAMHOP Microelectronics Corp. ELECTRONIC VOLUME
CONTROLLER
FEATURES
* 0dB to -66dB attenuation controlled by
2dB/step
* 2 channels built in
* High voltage CMOS technology
operating voltage range: VCC=6 ~ 12V
APPLICATION
Audio Equipment Volume Control.
PIN ASSIGNMENT
Vss
L-OUT1
L-IN1
A-GND
L-IN2
L-OUT2
INH
DCO
1
16
2
15
3
14
4
13
SM7153
5
12
6
11
7
10
8
9
VDD
R-OUT1
R-IN1
A-GND
R-IN2
R-OUT2
U/D
OSC
BLOCK DIAGRAM
U/D 10
OSC 9 OSC
L-OUT1 2
L-IN1 3
A-GND 4
L-IN2 5
L-OUT2 6
VDD VSS INH
16 1
7
U/D 7 BITS
BI-DIRECTIONAL
CK SHIFT REGISTER
INT
U/D 6 BITS
BI-DIRECTIONAL
CK SHIFT REGISTER
VDD
AUTO
INITIALISE
CIRCUIT
INT
CONSTANT
CURRENT
CIRCUIT
8 DCO
CK
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
CK
A-SW
CK
A-SW
A-SW
A-SW
A-SW
A-SW
CK
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
CK
A-SW
CK
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
15 R-OUT1
14 R-IN1
13 A-GND
12 R-IN2
11 R-OUT2
Page 1
V.1.0
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