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HA12221F fiches techniques PDF

Hitachi Semiconductor - Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.)

Numéro de référence HA12221F
Description Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.)
Fabricant Hitachi Semiconductor 
Logo Hitachi Semiconductor 





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HA12221F fiche technique
HA12216F/HA12221F Series
Audio Signal Processor for Car Deck
(Decode only Dolby B type NR with PB Amp.)
ADE-207-254E (Z)
6th Edition
Dec. 2000
Description
HA12216F/HA12221F series are silicon monolithic bipolar IC providing Dolby B type noise reduction,
music sensor, PB equalizer system in one chip.
Note: 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. HA12221F series does not include Dolby B NR.
Functions
PB equalizer
× 2 channel
Music sensor
× 1 channel
Dolby B NR (Only HA12216F series) × 2 channel
Line mute (Tape radio) SW
× 2 channel
Features
Different type of PB equalizer characteristics selection (120 µs/70 µs) 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 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 HA12216F series)
Line mute (Tape radio) control switching built-in.
Available to connect direct with MPU.
These ICs are strong for a cellular phone noise. (18 dB improvement from HA12163)

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