HA12219 - Hitachi Semiconductor

HA12219 Audio Signal Processor

HA12219NT is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system and each electronic control switch in one chip. Functions • PB equalizer × 2 channel • REC equalizer × 2 channel • Each electronic control switch to change REC/PB etc. • REC MUTE • REC head return switch Features • REC equalizer is very small number of external parts, b.

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. HA12219NT Pin Description, Equivalent Circuit (VCC = 12 V, Vref = 5.6 V, Ta = 25°C, No signal, The value in the table show typical value.) Pin No. 1 2 Pin Name VCC REC-OUT(L) Note V = VCC V = Vref VCC Equivalent Circuit Pin Description VCC pin REC-EQ output GND 3 4 REC-OUT(R) R.