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SC9153A Schematic ( PDF Datasheet ) - Silan Microelectronics

Teilenummer SC9153A
Beschreibung ELECTRONIC VOLUME CONTROLLER
Hersteller Silan Microelectronics
Logo Silan Microelectronics Logo 




Gesamt 9 Seiten
SC9153A Datasheet, Funktion
ELECTRONIC VOLUME CONTROLLER
SC9153A
DESCRIPTION
The SC9153A is CMOS IC which has been designed for
electronization volume control of audio equipment,etc.
FEATURES
*Wide operating voltage range(VDD=6V ~ 12V)
*Low current comsumption .
*Attenuation can be controlled from 0dB to –66dB by 2dB/step
*Both of dual power suppliers of (+) and (-) and a single power
supply can be used.
*Be capable of controlling attenuation by means of the built-in
oscillator and the up/down terminals.
DIP-16
BLOCK DIAGRAM
U/D 10
OSC 9
OSC
VDD
16
U/D 7 Bits Bidirectional
CK shift registor
INT
L-OUT1 2
L-IN1 3
A-GND 4
L-IN2 5
L-OUT2 6
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
VDD
CK
CK
VSS
1
U/D 6 Bits Bidirectional
CK shift registor
INT
Auto Initialize
Circuit
Constant
Current
Circuit
7 INH
8 DCO
CK A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
15 R-OUT1
14 R-IN1
CK
A-SW
A-SW
A-SW
A-SW
A-SW
A-SW
13 A-GND
12 R-IN2
11 R-OUT2
1






SC9153A Datasheet, Funktion
VDD
Vss
VDD
IN1
Vss
SC9153A
If there is possibility for excessive voltage being to the
attenuator, it is recommended to insert a protected diode as
illustrated below.
4.POWER SUPPLY
DUAL POWER SUPPLY
VDD
U/D OSC
A-GND SC9153A
VSS
INH DCO
DC
VDD
SINGLE POWER SUPPLY
VDD
U/D OSC
A-GND SC9153A
VSS INH DCO
DC
+VDD
OSC
U/D
0
UP DOWN
-VSS
+VDD
OSC
U/D
0
UP DOWN
VSS (0V)
VDD
6

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