Overview
The LC7527E is a microprocessor controllable seven-band graphic equalizer LSI that does not require the use of external semiconductor inductors (simulated inductors).

Features
• This LSI, in conjunction with a control microprocessor,
   can implement in two chips, an electronic graphic
   equalizer with the following features.
      — One touch gain control for each band
      — One touch memory setting recall allows users to
         select desired frequency characteristics for each track.
      — Since the LC7527E includes band filter amplifiers
         on chip, capacitors are the only external components
         required in application systems.
      — Minimal switching noise due to the use of a Silicon
         gate CMOS process.
        
Functions
• Left and right channel seven-band graphic equalizers
• Each band operates in ±2 dB steps.
• Each band has a maximum boost of +12 dB and a
   maximum cut of –12 dB for a total of 13 settings.
• Independent left and right channel operation
• Serial data input supports CCB format communications
   with the system controller.
• CMOS LSI with a 12 V breakdown voltage