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
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