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Sony Semiconductor Electronic Components Datasheet

CXA2021S Datasheet

I2C BUS Sound Processor for TV

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CXA2021S pdf
I2C BUS Sound Processor for TV
CXA2021S
Description
The CXA2021S is a bipolar IC developed as an I2C
BUS control sound processor for TV. This IC
implements surround, tone control, balance, volume,
mute and AGC functions.
22 pin SDIP (Plastic)
Features
I2C BUS control
The AGC circuit is adopted to absorb volume
differences between input sources and improve the
S/N ratio in hearing.
Absolute Maximum Ratings
Supply voltage
VCC 14
V
Operating temperature Topr –20 to +75 °C
Storage temperature
Tstg –65 to +150 °C
Allowable power dissipation PD
0.9 W
Structure
Bipolar silicon monolithic IC
Applications
TVs
Recommended Operating Condition
Supply voltage
8 to 13
V
Pin Configuration
22 21 20 19 18 17 16 15 14 13 12
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–
E95319-ST


Sony Semiconductor Electronic Components Datasheet

CXA2021S Datasheet

I2C BUS Sound Processor for TV

No Preview Available !

CXA2021S pdf
CXA2021S
Block Diagram
I2C BUS SOUND PROCESSOR
Vcc
150Hz HPF
DET1
16 17 13
DET2
10
21
CH-L CL-L
19 20
AGC DET 1
AGC DET 2
Surround
L = L – (L – R) × 1 – SCR R = 18K
1 + SCR
R = R + (L – R) × 1 – SCR
1 + SCR
L-IN
22
1
R-IN
PS
Vcc/2
18
VRS
2
GND
15
PS
TONE
VCA
BASS
TRE
VOL
BAL
TONE
VCA
LOUT
14
ROUT
9
DAC
BUS DEC
43
CH-R CL-R
7 6 58
12 11
SDA SCL
BASS TRE BAL VOL
–2–


Part Number CXA2021S
Description I2C BUS Sound Processor for TV
Maker Sony Corporation
Total Page 16 Pages
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