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HA12219

Hitachi Semiconductor
Part Number HA12219
Manufacturer Hitachi Semiconductor
Description Audio Signal Processor
Published Mar 22, 2005
Detailed Description HA12219NT Audio Signal Processor for Cassette Deck ADE-207-258A 2nd Edition July 1998 Description HA12219NT is silicon ...
Datasheet PDF File HA12219 PDF File

HA12219
HA12219

Overview
HA12219NT Audio Signal Processor for Cassette Deck ADE-207-258A 2nd Edition July 1998 Description 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, 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) 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.
1998, page 2 of 29 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.
) (cont) Pin No.
12 Pin Name PB-NF(R) Note PB-IN = Vref Equivalent Circuit VCC Pin Description PB-EQ feed back PB-IN 17 13 PB-NF(L) PB-EQ(R) PB-OUT = Vref PB-OUT NAB output GND 16 21 PB-EQ(L) REC-IN(R) V = Vref VCC REC-EQ input 100 k Vref 7 22 14 REC-IN(L) PB-OUT(R) V = Vref VCC PB output GND 15 18 PB-OUT(L) A 120/70 I = 20 µA I VCC Mode control input 22k 100 k GND 19 20 A/B B I/II Rev.
2, Jul.
1998, page 3 of 29 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.
) (cont) ...


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