Description
HA12206NT is silicon monolithic bipolar IC providing music sensor system, ALC, REC equalizer system and each electronic control switch in one chip.

FEATUREs
• REC equalizer is very small number of external parts, built-in 2 types of frequency characteristics.
• Correspondence with normal position (TYPE I) / high position (TYPE II).
• TYPE I / TYPE II and PB equalizer fully electronic control switching built-in.
• Controllable from direct micro-computer output.
• Available to reduce substrate-area because of high integration and small external parts.

Functions
• REC equalizer × 2 channel
• Line Amp. × 2 channel
• ALC (Automatic Level Control)
• MS (Music Sensor)
• Each electronic control switch to change REC equalizer, bias, etc.
• REC mute