HA12155NT processor equivalent, audio signal processor.
* Inductor less REC equalizer is adjustable of its characteristics by external resistor
* Rec level is adjustable automatically with electrical volume which is bu.
HA12155NT/HA12157NT is silicon monolithic bipolar IC providing Dolby noise reduction system*, electrical volume system, REC equalizer system and level meter system in one chip.
Functions
* REC equalizer
* Dolby B/C NR
* Electronic volume.
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