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Sony Semiconductor Electronic Components Datasheet

CXA2547Q Datasheet

2-band Electronic Volume

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CXA2547Q pdf
CXA2547Q
2-band Electronic Volume
For the availability of this product, please contact the sales office.
Description
The CXA2547Q is a 2-channel electronic volume
IC. A 34-bit serial data input controls the level and
characteristics of the output signal. It may be used
in car stereos and general audio systems.
48 pin QFP (Plastic)
Features
Loudness
Volume control
(from 0 dB to –80 dB, –dB : Fine (1 dB-step)
Coarse (8 dB-step)
Balance
Tone control
(2-band, 2 dB-step from –15 dB to +15 dB)
Fader
2 dB-step to –20 dB, –25 dB, –35 dB, –45 dB, –60
dB, –dB)
Input and gain selector (4 channels)
Serial data control (DATA, CLK, CE)
Single 8 V power supply
Zero-cross detection circuit
(L/R independent operation for the volume block)
Timer
Power-off mute
Countermeasure to the noise of the portable
telephone
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage
VCC 13 V
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –65 to +150 °C
Allowable power dissipation
PD 350 mW
(Ta=85 °C)
Recommended Operating Conditions
Supply voltage
VCC 7 to 12
V
Structure
Bipolar silicon monolithic IC
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—
E97Y19B91-TE


Sony Semiconductor Electronic Components Datasheet

CXA2547Q Datasheet

2-band Electronic Volume

No Preview Available !

CXA2547Q pdf
Block Diagram and Pin Configuration
CXA2547Q
36 35 34 33 32 31 30 29 28 27 26 25
GAIN12 37
GAIN11 38
IN14 39
IN13 40
IN12 41
IN11 42
IN21 43
IN22 44
IN23 45
IN24 46
GAIN21 47
GAIN22 48
LOUD
LLOOUDD
VOLUME
2dB STEP
VOLUME
1dB STEP
TONE
FADER
ZCDET
VOL
VCTBUFF
VCTBUFF
VCTBUFF
ZCDET
LATCH
SHIFT REGISTER
ZCDET
VOL
VCTBUFF
VCTBUFF
VCTBUFF
LATCH
CONTROL
VOLUME
2dB STEP
VOLUME
1dB STEP
TONE
FADER
24 FNTO1
23 REO1
22 CE
21 CLK
20 DGND
19 GND
18 VCC
17 VCT
16 DATA
15 TIMER
14 REO2
13 FNTO2
1 2 3 4 5 6 7 8 9 10 11 12
—2—


Part Number CXA2547Q
Description 2-band Electronic Volume
Maker Sony Corporation
Total Page 19 Pages
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