Description
HA12211NT is silicon monolithic bipolar IC providing REC equalizer system, PB equalizer system and each electronic control switch in one chip.

Functions
•  PB equalizer ×2 channel
•  REC equalizer ×2 channel
•  Each electronical control switch to change equalizer characteristics
•  REC mute
•  REC head return switch

FEATUREs
•  REC equalizer is very small number of external parts.(4 types of frequency characteristics built-in)
•  PB equalizer built-in. (A/B input changing system, 4 types of frequency characteristics)
•  Independent PB sensitivity for A deck, B deck.
•  Normal-speed/high-speed, normal tape/chrome tape switching built-in.
•  Controllable from direct micro-computer output.
•  Available to reduce substrate-area because of high integration and small external parts.