Electronic volume control
CXA1846AM/AN
Electronic volume control For the availability of this product, please contact the sales office.
Descriptio...
Description
CXA1846AM/AN
Electronic volume control For the availability of this product, please contact the sales office.
Description The CXA1846AM/AN is an electrical volume control IC for use in car radios/stereos and radiocassette recorders featuring serial data control. It has improved over the CXA1846M/N by reducing the ‘pop’ noise during volume level-switchings. Features Volume adjustment (0dB to –87dB, – ∞dB) Balance Serial data control (DATA, CLK, CE) Single 8V power supply Zero-cross detection circuit Structure Bipolar silicon monolithic IC CXA1846AM 20 pin SOP (Plastic) CXA1846AN 20 pin SSOP (Plastic)
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 350 (75°C) mW PD SOP SSOP 220 (75°C) mW Recommended Supply Voltage Range Supply voltage VCC 6 to 12
V
Block Diagram and Pin Configuration
INAO1 VRIN1 VCT1 INN1 OUT1 INP1 GND VCT NC VCC
11 100k
20
19
18
17
16
15
14
13
12
100k
VOLUME 8dB STEP VOLUME 1dB STEP
VCTBUFF
LATCH
LATCH CONTROL
ZCDET
SHIFT REGISTER
50K
VOLUME 8dB STEP VOLUME 1dB STEP
1
2
3
4
5
6
7
8
VCTBUFF
9
VCTBUFF
10
50K
INAO2
VRIN2
DATA
INN2
VCT2
INP2
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 il...
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