LC75410W Datasheet | SANYO

Ordering number : ENN7027 CMOS IC LC75410E, 75410W Electronic Volume Controller for Car Audio Systems Overview The LC75410E and 75410W are electronic volume controllers that enable control of volume, balance, fader, bass/treble/mid, loudness, input switching, and input gain using only a small number of external ponents. 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 there is no signal - 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) Functions - Volume: 0 d B to - 79.5 d B in 0.5-d B steps, and - ∞ (161 positions) Balance function with separate L/R control - Fader: rear output or front output can be attenuated across 16 positions (in 1-d B steps from 0 d B to - 2 d B, 2-d B steps from - 2 d B to - 20 d B, 10-d B steps from - 20 d B to - 30 d B, and - 45 d B, - 60 d B, - ∞) - Bass/treble/mid: Each band can be controlled in 1-d B steps from 0 d B to ±6 d B, and in 2-d B steps from ±8 d B to ±12 d B. - Input gain: 0 d B to +18.75 d B (1.25-d B steps) amplification is possible for the input signal. - Input switching: five input signals can be selected for Left and for Right (Four are singleended inputs and one is a differential input.) - Loudness: A tap is output from the - 32 d B position of a 2 d B step volume control resistor ladder. A loudness function can be implemented by connecting an external RC...