HA12212F - Hitachi Semiconductor

HA12212F Audio Signal Processor

HA12192F/HA12197F/HA12212F series are silicon monolithic bipolar ICs providing Dolby noise reduction system*, music sensor, PB equalizer system in one chip. Functions • PB equalizer × 2 channel • Music sensor × 1 channel • Decode only Dolby B-NR × 2 channel Note: HA12197F series is not built in Dolby B-NR. Features • Different type of PB equalizer charact.

Features

• Different type of PB equalizer characteristics selection (120µ / 70µ position) is available with fully electronic control switching built-in.
• 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 frequency response of music sensor by external capacitor.
• NR ON/OFF fully electronic control switching built-in. (HA12192F/HA12212F series only)
• Available to connect direct with MPU.
• HA12192F series, HA12197F series and HA12212F available to allow common PCB desig.