GENERAL DESCRIPTION
The Sound Fader Control circuit (SOFAC) is an I2C-bus controlled preamplifier for car radios.

Features
• Source selector for three stereo inputs
• Inputs and outputs for noise reduction circuits
• Volume and balance control; control range of 86 dB in steps of 2 dB
• Bass and treble control from+15 dB (treble 12 dB) to−12 dB in steps of 3 dB
• Fader control from 0 dB to−30 dB in steps of 2 dB
• Fast muting
• Low noise suitable for DOLBY* B and C NR (noise reduction)
• Signal handling suitable for compact disc
• I2C-bus control for all functions
• ESD protected