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Sony Semiconductor Electronic Components Datasheet

CXA1279BS Datasheet

TV SOUND PROCESSOR

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TV Sound Processor
CXA1279BS
Description
The CXA1279BS is a bipolar IC for TV sound
control with functions such as tone control, volume
and balance.
22 pin SDIP (Plastic)
Features
2 type of inputs
Bass, Treble, Balance and Volume control operative
in either 0 to VCC or 0 to 5 V.
Applications
TV
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage
VCC 14 V
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –65 to +150 °C
Allowable power dissipation
PD 900 mW
Operating Condition
Supply voltage
VCC 8.5 to 12.5 V
Block Diagram and Pin Configuration
22 21 20 19 18 17 16 15 14 13 12
TONE
TONE
VCA
VCA
CONTROL
&
BIAS
REG
1 2 3 4 5 6 7 8 9 10 11
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E99336-TE


Sony Semiconductor Electronic Components Datasheet

CXA1279BS Datasheet

TV SOUND PROCESSOR

No Preview Available !

Pin Description
Pin
Symbol
No.
Voltage
1 TV-IN2 4.5 V
CXA1279BS
Equivalent circuit
(Ta=25 °C VCC=9 V)
Description
36k
1
12k
VCC
12µ
TV mode input pin.
3 AUX-IN2 4.5 V
36k
3
12k
VCC
12µ
AUX mode input pin.
4 INSW
60µ
2k
4
60µ
VCC
60µ
Mode select pin.
180µ
180µ
VCC
2.7k 7k
2.7k
5 CH2 4.5 V 5
External pin of HPF capacitor.
2.8k 2.8k
—2—


Part Number CXA1279BS
Description TV SOUND PROCESSOR
Maker Sony Corporation
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