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HA12167FB Datasheet, PDF (1/73 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck (Deck 1 Chip) | |||
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HA12167FB/HA12169FB
Audio Signal Processor for Cassette Deck (Deck 1 Chip)
ADE-207-110B (Z)
3rd. Edition
June 1997
Description
HA12167FB/HA12169FB is silicon monolithic bipolar IC providing REC volume system, Level meter
system and Dolby noise reduction system in one chip.
Functions
⢠REC equalizer
⢠Equalizer volume
⢠Dolby B/C NR
⢠REC/PB input electronic volume
⢠Level Meter
⢠DAC for adjusting bias
à 2 channel
à 2 channel
à 2 channel
à 2 channel
à 2 channel
à 2 channel
Features
⢠Available to create characteristics of REC equalizer by changing external resistor, no coil
⢠Equalizer volume is available to calibrate recording automatically with micro-controller
⢠Electronic volume built-in is available to set the level of recording and play back automatically with
micro-controller
⢠4 types of input (3 out of 4 are by way of electronic volume)
⢠Input electronic control switching is irrelevant to REC/PB electronic control switching
⢠Dolby noise reduction system is available with double cassette decks (Unprocessed signal output
available from recording out terminals during PB mode)
⢠Log-compressed level meter output is range from 0 V to 5 V (Usable as music search switchable gain of
0 dB and 20 dB respectively)
⢠Normal-speed/high-speed, normal/metal/chrome fully electronic control switching built-in
⢠NR-ON/OFF, Dolby B/C, MPX ON/OFF fully electronic control switching built-in
⢠Reduction of the number of pins by transfered serial data to electronic volume control switching and
another control switching (Controllable from micro-controller directly)
⢠Small the number of external parts
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