Hitachi HA12219NT
HA12219NT is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system and each electronic control switch in one chip. 1998, page 6 of 29 HA12219NT Functional Description Power Supply Range HA12219NT is designed to operate on single supply, shown by table 1.| Part No. | HA12219NT |
|---|---|
| Datasheet | HA12219NT Download |
| Manufacturer |  Hitachi |
| Description | Audio Signal Processor |
| Buy | Stock & Price |
DESCRIPTION
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, 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 PinDESCRIPTION
VCC pin REC-EQ output GND 3 4 REC-OUT(R) REC-RETURN V = Vref V’ = Vref VCC I REC return V 5 pin, 6 pin I GND , 4 V 5 6 7 PB-IN B(L) PB-IN B(R) VREF V = Vref V’ = VCC / 2 PB B deck input VCC Reference 10 k V 10 k GND 8 PB-IN A(L) V = Vref VCC PB A deck input , V PB-NF 9 PB-IN A(R) Rev.2, Jul.
