Description
HA12231FP is silicon monolithic bipolar IC providing PB equalizer system and music sensor system in one chip.
FEATUREs
• No use external parts for PB equalizer. (Fixed characteristics built-in)
• Available to change music sensing level by external resistor.
• Available to change frequency response of music sensor by external capacitor.
• Different type of PB equalizer characteristics selection (120 µs/70 µs) is available.
• Line mute ON/OFF is avalable.
• This IC is strong for a cellular phone noise.