LC75382E

Ordering number : EN4881A CMOS LSI LC75382E Electronic Tone Controls for Car Stereo Systems Overview The LC75382E is an electronic tone control IC that can implement, with minimal external components, the complete range of tone and volume controls required in a car stereo, including volume, balance, fader, bass and treble, input switching and input level controls. Features Volume: Controls the left and right volume levels independently from 0 dB to –78 dB (in 2 dB steps) and –∞ dB (41 settings). Since the left and right levels are independent this circuit also functions as a balance control. Fader: Attenuates either the rear or front outputs over 16 levels, from 0 dB to –20 dB in 2 dB steps, from –20 dB to –25 dB in 5 dB step, from –25 dB to –45 dB in 10 dB steps and then to –60 dB and –∞ dB. Bass/treble: Implements 21 position bass and treble controls with the addition of external capacitors. Input selector: Selects one of four inputs for both the left and right channels. The selected input signal can be amplified by between 0 dB and +18 dB in 6 dB steps. The provision of on-chip operational amplifiers means that few external components are required. Fabricated in a silicon gate process for minimal switching noise. All functions can be controlled by serial data over a CCB interface. Specifications Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V Package Dimensions unit: mm 3156-QFP48E [LC75382E] SANYO: QIP48E CCB is a trademark ...