HA12226F Overview
Description
The HA12226F/HA12227F are silicon monolithic bipolar IC providing Dolby noise reduction system*1, music sensor system, REC equalizer system and each electronic control switch in one chip. Dolby is a trademark of Dolby Laboratories Licensing Corporation.
Key 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
- PB equalizer changing system built-in
- Dolby NR*2 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, Normal / Crom and PB equalizer fully electronic control switching built-in
