HA12228F

Features:

• Different type of PB equalizer characteristics selection (120 s/70 s) 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.


Specifications

Item	Symbol	Rating	Unit	Note
Maximum supply voltage	VCC Ma	16	V	1
Power dissipation	Pd	400	mW	Ta 85°C
Operating temperature	Topr	40 to +85	°C
Storage temperature	Tstg	55 to +125	°C

Description

HA12228F/HA12229F are silicon monolithic bipolar IC providing Dolby noise reduction system*, music sensor, PB equalizer system in one chip.
Notes of HA12228F/HA12229F: 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.