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Sony Semiconductor Electronic Components Datasheet

CXA1746Q Datasheet

Electronic Volume

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CXA1746Q pdf
CXA1746Q
Electronic Volume
For the availability of this product, please contact the sales office.
Description
The CXA1746Q 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 –87 dB, –dB: Fine (1 dB-step)
Coarse (8 dB-step)
Balance
Tone control
(3-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
Timer
Power-off mute
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 Condition
Supply voltage
VCC 6 to 12
V
Structure
Bipolar 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—
E94812D7Y


Sony Semiconductor Electronic Components Datasheet

CXA1746Q Datasheet

Electronic Volume

No Preview Available !

CXA1746Q pdf
Block Diagram and Pin Configuration
CXA1746Q
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
8dB STEP 1dB STEP
V OLUME V OLUME
TONE
FA DER
ZCDET
V CTBUFF
V CTBUFF
V CTBUFF
LA TCH
SHIFT REGISTER
LA TCH
CONTROL
V CTBUFF
V CTBUFF
V CTBUFF
LOUD
V OLUME V OLUME
8dB STEP 1dB STEP
TONE
FA DER
24 FNTO
23 REO1
22 CE
21 CLK
20 DGND
19 GND
18 VCC
17 VCT
16 DATA
15 TIMER
14 REO
13 FNTO2
1 2 3 4 5 6 7 8 9 10 11 12
—2—


Part Number CXA1746Q
Description Electronic Volume
Maker Sony Corporation
Total Page 19 Pages
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