HA12211NT - Hitachi Semiconductor

HA12211NT Audio Signal Processor

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 numb.

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. HA12211NT Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.25V, Ta = 25°C, No signal, The value in the table show typical value.) Pin .