Description
HA12230NT is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system and each electronic control switch in one chip.

Features
• REC equalizer is very small number of external parts, built-in 2 types of frequency characteristics
• PB equalizer circuit built-in
• REC/PB are possible with TYPE I/II
• Controllable from direct micro-computer output
• Available to reduce substrate-area because of high integration and small external parts

Functions
• PB equalizer × 2 channel
• REC equalizer × 2 channel
• MS use Mixing Amp.
• Each electronic control switch to change tape type and mute etc.
• REC mute
• REC head return switch
• Line Amp.
• Line mute