HA12179F Datasheet, PDF (4/40 Pages) Hitachi Semiconductor – Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp)

HA12179F
Pin Discription (V_CC = 9 V Single supply, Ta = 25°C, No signal, The value in the table
show typical value.)
Pin No.
2
41
Terminal
name
TAI
DC
Zin voltage Equivalent circuit
100 kΩ V_CC/2
Description
Tape input
5
MUI
38
25
MSI
10
NR DET
—
2.5 V
33
3
BIAS
—
0.28 V
24
MS DET
—
V
CC
40
RIP
—
V_CC/2
V_CC/2
Mute circuit input
Music sensor
rectifier input
Time constant
pin for rectifier
GND
Reference
current input
Time constant
pin for rectifier
GND
Ripple filter
Rev.1, Apr. 1994, page 4 of 40