Hitachi HA12209
HA12209F is silicon monolithic bipolar IC providing Dolby noise reduction system*, music sensor system, REC equalizer system and each electronic control switch in one chip.| Part No. | HA12209 |
|---|---|
| Datasheet | HA12209 Download |
| Manufacturer |  Hitachi |
| Description | Audio Signal Processor |
| Buy | Stock & Price |
DESCRIPTION
Functions● Dolby B-NR
● REC equalizer
● Music sensor × 2 channel × 2 channel × 1 channel
● Each electronic control switch to change REC equalizer, bias, etc.
FEATURES
● REC equalizer is very small number of external parts and have 4 types of frequency characteristics built-in.● 2 types of input for PB, 1 type of input for REC.
● 70µ-PB equalizer changing system built-in.
● Dolby NR with dubbing double cassette decks. Unprocessed signal output available from recording out terminals during PB mode.
● Provide stable music sensor system, available to design music sensing time and level.
● Controllable from direct micro-computer output.
● Bias oscillator control switch built-in.
● NR ON/OFF and REC/PB fully electronic control switching built-in.
● Normal-speed/high-speed, TYPE I/TYPE II and PB equalizer fully electronic control switching built-in.
● Available to reduce substrate-area because of high integration and small external parts. * Dolby is a trademark of Dolby Laboratories Licensing Corporation.
