Hitachi HA12157NT
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.| Part No. | HA12157NT |
|---|---|
| Datasheet | HA12157NT Download |
| Manufacturer |  Hitachi |
| Description | Audio Signal Processor |
| Buy | Stock & Price |
DESCRIPTION
Functions● REC equalizer
● Dolby B/C NR
● Electronic volume
● Level Meter × 2 channel × 2 channel × 2 channel × 2 channel
FEATURES
● Inductor less REC equalizer is adjustable of its characteristics by external resistor● Rec level is adjustable automatically with electrical volume which is built-in
● 3 type of input selection is available (one is by way of electrical volume)
● Separate input selection SW and REC/PB SW
● Dolby noise reduction with dubbing cassette decks (Unprocessed signal output available from recording out terminals during PB mode)
● Log-compressed level meter output is range from 0 V to 5 V (Usable as music search switchable gain of 0 dB and 20 dB respectivily)
● Normal-speed/high-speed (Double), normal/metal/chrome fully electronic control switching built-in
● NR-ON/OFF, Dolby B/C, MPX ON/OFF fully electronic control switching built-in (Controllable from micro-controller directly)
● Reduction of number of pin by transfered serial data to electronic volu...
