HA12226F Datasheet | Hitachi Semiconductor

Description The HA12226F/HA12227F are silicon monolithic bipolar IC providing Dolby noise reduction system- , music sensor system, REC equalizer system and each electronic control switch in one chip. Note: 1. Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporation is required for the use of this IC. The HA12227F is not built-in Dolby B-NR. Functions - Dolby B-NR- - Music sensor - Pass amp. × 2 channel × 2 channel × 1 channel × 2 channel - REC equalizer - Each electronic control switch to change REC equalizer, bias, etc. Note: 2. The HA12227F is not built-in Dolby B-NR. 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-puter 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. - Available to reduce substrate-area because of high integration and small external parts. HA12226F/HA12227F Ordering Information Operating Voltage Product HA12226F HA12227F Power Supply Range (Single Supply) 11.0 V to 15.0 V 9.5 V to 15.0 V Standard Level Product HA12226F HA12227F Package FP-56A PB-OUT Level 580 m Vrms REC-OUT Level 300 m Vrms Dolby Level 300 m Vrms  Function Music Sensor ❍ ❍ REC / PB Selection ❍ ❍ Product HA12226F HA12227F Dolby B-NR ❍ × REC-EQ ❍ ❍ Pass Amp. ❍ ❍ ALC ❍ ❍ Note: Depending on the employed REC / PB head and test tape characteristics, there is a rare case that the REC-EQ characteristics of this LSI...