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HA12169FB Datasheet

  • HA12169FB

  • Audio Signal Processor for Cassette Deck (Deck 1 Chip)

  • 73頁

  • HITACHI

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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
鈥?/div>
REC equalizer
鈥?/div>
Equalizer volume
鈥?/div>
Dolby B/C NR
鈥?/div>
REC/PB input electronic volume
鈥?/div>
Level Meter
鈥?/div>
DAC for adjusting bias
脳
2 channel
脳
2 channel
脳
2 channel
脳
2 channel
脳
2 channel
脳
2 channel
Features
鈥?/div>
Available to create characteristics of REC equalizer by changing external resistor, no coil
鈥?/div>
Equalizer volume is available to calibrate recording automatically with micro-controller
鈥?/div>
Electronic volume built-in is available to set the level of recording and play back automatically with
micro-controller
鈥?/div>
4 types of input (3 out of 4 are by way of electronic volume)
鈥?/div>
Input electronic control switching is irrelevant to REC/PB electronic control switching
鈥?/div>
Dolby noise reduction system is available with double cassette decks (Unprocessed signal output
available from recording out terminals during PB mode)
鈥?/div>
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)
鈥?/div>
Normal-speed/high-speed, normal/metal/chrome fully electronic control switching built-in
鈥?/div>
NR-ON/OFF, Dolby B/C, MPX ON/OFF fully electronic control switching built-in
鈥?/div>
Reduction of the number of pins by transfered serial data to electronic volume control switching and
another control switching (Controllable from micro-controller directly)
鈥?/div>
Small the number of external parts

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