Description

The CXA1946CR is a serial control electronic

volume IC designed for use in audio systems.

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

13

V

• Operating temperature

Topr

–40 to +85

°C

• Storage temperature

Tstg

–65 to +150

°C

• Allowable power dissipation

LQFP

180

mW (Ta = 85°C)

Operating Conditions

Supply voltage

6 to 12

V

– 1 –

CXA1946CR

E97516A7Y

Electronic Volume

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.

48 pin LQFP (Plastic)

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