LC75411ES Description
ENN6928 CMOS IC LC75411ES, 75411WS Electronic Volume Controller for Car Audio Systems Overview The LC75411ES and 75411WS are electronic volume controllers that enable control of volume, balance, fader, bass/treble, loudness, input switching, and input gain using only a small number of external ponents.
LC75411ES Key Features
- On-chip buffer amplifier cuts down number of external ponents
- Low switching noise generated by on-chip switch through use of silicon gate CMOS process, for low switching noise when t
- Low switching noise when there is a signal due to use of on-chip zero-cross switching circuit
- On-chip 1/2 VDD reference voltage circuit
- Controls performed with serial input (CCB)
- Volume: 0 dB to -79.5 dB in 0.5-dB steps, and -∞ (161 positions) Balance function with separate L/R control
- Bass/treble: Both bass and treble can be controlled in 1-dB steps from 0 dB to ±6 dB, and in 2-dB steps from ±8 dB to ±1
- Input gain: 0 dB to +18.75 dB (1.25-dB steps) amplification is possible for the input signal
- Input switching: four input signals can be selected for Left and for Right
- Loudness: A tap is output from the -32 dB position of a 2 dB step volume control resistor ladder. A loudness function ca