LC75384NE-R Description
ENN6169 CMOS IC LC75384NE-R, 75384NW Electronic Volume and Tone Control for Car Stereo Systems Overview The LC75384NE-R and LC75384NW are electronic volume and tone control ICs that can implement volume, balance, fader, bass/treble/mid, loudness, input switching, and input gain control functions with a minimum number of external ponents.
LC75384NE-R Key Features
- Volume: 81 positions: from 0 dB to -79 dB in 1-dB steps and -∞. A balance function can be implemented by controlling the
- Bass/treble/mid: Control over ±12 dB in 2-dB steps in each band
- Input gain: The input signal can be amplified by from 0 dB to +18.75 dB in 1.25-dB steps
- Input switching: The left and right channels can each be selected from one of 5 inputs. (Four are single-ended inputs an
- Loudness: Taps are output from a 2-dB step volume control ladder resistor starting at the -32-dB position. A loudness fu
- On-chip buffer amplifiers minimize the number of required external ponents
- Minimal switching noise when no input signals are present due to fabrication in a silicon gate CMOS process that minimiz
- Use of zero-cross switching circuits for internal switches minimizes switching noise when signals are present
- Built-in VDD/2 reference voltage generator circuit
- All controls can be set from serial input data