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Numéro de référence | HA12228F | ||
Description | Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) | ||
Fabricant | Hitachi Semiconductor | ||
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HA12228F/HA12229F
Audio Signal Processor for Car Deck
(Decode only Dolby B-type NR* with PB Amp.)
ADE-207-325A
2nd Edition
Dec. 2000
Description
HA12228F/HA12229F are silicon monolithic bipolar IC providing Dolby noise reduction system*, music
sensor, PB equalizer system in one chip.
Notes: 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.
Functions
• PB equalizer
• Music sensor
• Dolby B-NR (Only HA12228F)
• Line mute SW
× 2 channel
× 1 channel
× 2 channel
× 2 channel
Features
• Different type of PB equalizer characteristics selection (120 µs/70 µs) 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.
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Pages | Pages 30 | ||
Télécharger | [ HA12228F ] |
No | Description détaillée | Fabricant |
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