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PDF SM7153 Data sheet ( Hoja de datos )
| Número de pieza | SM7153 | |
| Descripción | ELECTRONIC VOLUME CONTROLLER | |
| Fabricantes | SAMHOP | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SM7153 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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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
89
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
16 1
INH
7
U/D 7 BITS
BI-DIRECTIONAL
CK SHIFT REGISTER
INT
U/D 6 BITS
www.DataSheet.co.kr
BI-DIRECTIONAL
CK SHIFT REGISTER
VDD
AUTO
INITIALISE
CIRCUIT
INT
CONSTANT
CURRENT
CIRCUIT
8 DCO
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
CK
CK
CK
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
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
SM7153
SAMHOP Microelectronics Corp. ELECTRONIC VOLUME
CONTROLLER
(3) Attenuator
The attenuator unit consist of diffused resistors and analog switches. Attenuator 1
attenuates 0~60dB at 10dB/step while Attenuator 2 attenuates 2~8dB at 2dB/step, a total
of 0~66dB at 2dB/step.
0dB BUFFER
IN1
AMP
OUT1
IN2
0
OUT2
-10 -2
-20 -4
-30
R1
-40
-6
R2
-8
A-GND
-50
-60
ATTENUATOR 1
www.DataSheet.co.kr
R1=50kΩ(Typ.)
R2=20kΩ(Typ.)
Figure 4
00
ATTENUATOR 2
If there is the possibility for excessive voltage being to the attenuator, it is recommended to
insert a protective diode as illustrated below.
VDD
VDD
Vss
Figure 5
Page 5
Vss
IN
V.1.0
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SM7153.PDF ] | |
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