CXA1846AM Datasheet, PDF (1/10 Pages) Sony Corporation – Electronic volume control

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 radio-
cassette recorders featuring serial data control. It
has improved over the CXA1846M/N by reducing
the ‘pop’ noise during volume level-switchings.
CXA1846AM
20 pin SOP (Plastic)
CXA1846AN
20 pin SSOP (Plastic)
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
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 SOP 350 (75°C) mW
SSOP 220 (75°C) mW
Block Diagram and Pin Configuration
Recommended Supply Voltage Range
Supply voltage
VCC
6 to 12
V
20
19
18
17
16
15
14
13
12
11
100k
100k
50K
VOLUME VOLUME
8dB STEP 1dB STEP
LATCH
SHIFT REGISTER
50K
LATCH CONTROL
ZCDET
VOLUME VOLUME
8dB STEP 1dB STEP
1
2
3
4
5
6
7
8
9
10
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.
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E97102B8Y