CXA2546Q - Sony Corporation

CXA2546Q 3-band Electronic Volume

The CXA2546Q is a 2-channel electronic volume IC. A 34-bit serial data input controls the level and characteristics of the output signal. It may be used in car stereos and general audio systems. Features • Loudness • Volume control (from 0 dB to –80 dB, –∞ dB : Fine (1 dB-step) Coarse (2 dB-step) • Balance • Tone control (3-band, 2 dB-step from –15 dB to +15.

Features

• Loudness
• Volume control (from 0 dB to
  –80 dB,
  –∞ dB : Fine (1 dB-step) Coarse (2 dB-step)
• Balance
• Tone control (3-band, 2 dB-step from
  –15 dB to +15 dB)
• Fader 2 dB-step to
  –20 dB,
  –25 dB,
  –30 dB,
  –45 dB,
  –60 dB,
  –∞ dB)
• Input and gain selector (4 channels)
• Serial data control (DATA, CLK, CE)
• Single 8 V power supply
• Zero-cross detection circuit (L/R independent operation for the volume block)
• Timer
• Power-off mute
• Countermeasure to the noise of the portable telephone Structure Bipolar silicon monolithic IC 48 pin QFP (Plastic) Absolute Maximum Ratings (Ta=25 °C)
• Supply .