Ordering number : ENN6866A
CMOS IC
LC75421M
Electronic Volume Controller for Cars
Overview
The LC75421M is an electronic volume controller that enables control of volume, balance, fader, bass/treble + super bass, input switching, and input and output level control functions using only a small number of external components.
Features
• On-chip buffer amplifier cuts down number of external components • Low switching noise generated by on-chip switch due to use of silicon gate
CMOS process • On-chip reference
voltage circuit for analog ground • Controls performed with serial input (CCB)
Functions
• Volume: 0 dB to –79 dB in 1-dB steps, and –∞ (81 positions) Balance function with separate L/...