Description

The CXA1946BQ/BR 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.

• Portable phone noise countermeasure