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Sony Semiconductor Electronic Components Datasheet

CXA1946CR Datasheet

Electronic Volume

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CXA1946CR pdf
CXA1946CR
Electronic Volume
For the availability of this product, please contact the sales office.
Description
The CXA1946CR is a serial control electronic
volume IC designed for use in audio systems.
48 pin LQFP (Plastic)
Features
Loudness
Volume control (0dB to –87dB in 1dB step, –dB)
Balance
Tone control (15 steps, 2 bands, –16dB to +16dB)
Fader
(2dB-step to –20dB, –25dB, –35dB, –45dB, –60dB, –dB)
Input selector (4 channels)
Gain can be set for each input channel (common for channels 3 and 4)
Serial data control (DATA, CLK, CE)
Single 8V power supply
Zero-cross detection circuit (with timer)
Power-off mute
Volume control and tone control input/output pins are separate.
Absolute Maximum Ratings
Supply voltage
Operating temperature
Storage temperature
Allowable power dissipation
VCC
Topr
Tstg
PD
LQFP
13
–40 to +85
–65 to +150
180
V
°C
°C
mW (Ta = 85°C)
Operating Conditions
Supply voltage
VCC
6 to 12
V
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–
E97516A7Y


Sony Semiconductor Electronic Components Datasheet

CXA1946CR Datasheet

Electronic Volume

No Preview Available !

CXA1946CR pdf
Block Diagram and Pin Configuration
CXA1946CR
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
VOLUME
1dB STEP
VOLUME
TONE
VCTBUFF
VCTBUFF
VCTBUFF
ZCDET
LATCH
SHIFT REGISTER
LATCH CONTROL
LOUD
VOLUME
8dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
VOLUME
1dB STEP
TONE
FADER
24 FNTO1
23 REO1
22 CE
21 CLK
20 DGND
100k
100k
19 GND
18 VCC
17 VCT
16 DATA
15 TIMER
FADER
14 REO2
13 FNTO2
1 2 3 4 5 6 7 8 9 10 11 12
–2–


Part Number CXA1946CR
Description Electronic Volume
Maker Sony Corporation
Total Page 23 Pages
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