HA12174 Datasheet PDF - Hitachi Semiconductor
| Part Number | HA12174 | |
| Description | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) | |
| Manufacturers | Hitachi Semiconductor | |
| Logo |  |
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There is a preview and HA12174 download ( pdf file ) link at the bottom of this page. Total 66 Pages | ||
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HA12173 Series
Audio Signal Processor for Car Deck and Cassette Deck
(Dolby B/C-type NR with PB Amp)
ADE-204-016
1st Edition
Nov. 1992
Description
HA12173 series are silicon monolithic bipolar IC providing Dolby noise reduction system*, music sensor
and PB equalizer system in one chip.
Functions
• PB equalizer
• Dolby B/C-NR
• Music sensor
× 2 channel
× 2 channel
× 1 channel
Features
• Different type of PB equalizer characteristics selection (normal/chrome or metal) is available with fully
electronic control switching built-in.
• 2 type of input selection (RADIO/TAPE) is available.
• Changeable to Forward, Reverse-mode for PB head with fully electronic control switching built-in.
• Available to change music sensing level by external resistor.
• Music sensing level selection is available with fully electronic control switching built-in.
• Available to change frequency response of music sensor.
• NR-ON/OFF and REC/PB fully electronic control switching built-in.
• 4 type of PB-out level.
• Available to allow common PCB designs with HA12163 series.
* Dolby is a trademark of Dolby Laboratories Licensing Corporation.
A license from Dolby Laboratories Licensing Corporation is required for the use of this IC.
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HA12173 Series
Pin Description (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value) (cont)
Pin No.
21
Terminal
name
MS OUT
DC
Zin voltage Equivalent circuit
——
MS VCC
Description
Music sensor
output to MPU
22 VCC
— VCC —
23 MS V
CC
20
D GND
— 0V —
27 MS GND
49, 50
48, 51
GND
FIN
— VCC/2
46, 53
45, 54
RIN
NFI
28 NOI
29 FFI
D GND
Power supply
Digital (Logic)
ground
Music sensor
ground
Ground
PB - EQ input for
forward
PB - EQ input for
reverse
Negative
feedback
terminal of PB -
EQ amp.
Negative
feedback input
for normal speed
Negative
feedback input
for FF or REW
Rev.1, Nov. 1992, page 5 of 66
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HA12174 electronic component. |
| Information | Total 66 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HA12174.PDF Datasheet ] | |
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