HA12228F

HA12228F/HA12229F Audio Signal Processor for Car Deck (Decode only Dolby B-type NR* with PB Amp.) ADE-207-325A 2nd Edition Dec. 2000 Description HA12228F/HA12229F are silicon monolithic bipolar IC providing Dolby noise reduction system*, music sensor, PB equalizer system in one chip. Notes: 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. 2. HA12229F is not built-in Dolby B-NR. Functions PB equalizer Music sensor Dolby B-NR (Only HA12228F) Line mute SW × 2 channel × 1 channel × 2 channel × 2 channel Features Different type of PB equalizer characteristics selection (120 µs/70 µs) is available with fully electronic control switching built-in. Easy interface with the PB head. (The PB-EQ resistance self-containing) Changeable to Forward, Reverse-mode for PB head with fully electronic control switching built-in. Available to change music sensing level by external resistor. Available to change response of music sensor by external capacitor. Music sensing level, built-in switch to change a band (MSGV). NR ON/OFF fully electronic control switching built-in. (Only HA12228F) Line mute control switching built-in. Available to connect direct with MPU. These ICs are strong for a cellular phone noise. HA12228F/HA12229F Ordering Information Operating Voltage Product HA12228F HA12229F Note: 1. These ICs are designed to operate on single supply. Min 6...