HA12179F Datasheet, PDF (16/40 Pages) Hitachi Semiconductor – Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp)

HA12179F
The Tolerances of External Components for Dolby NR-block
For adequate Dolby NR tracking response, take external components shown below.
37
PBout
(L)
BIAS
3
R11
18k
±2%
PBout
(R)
6
C17
0.1µ
±10%
36
35
34
33
NC
NC
NC
NR
DET (L)
HA12179F (PB1 CHIP)
NR
NC
NC
NC DET (R)
7
8
9
10
C10
0.1µ
±10%
Figure 7 Tolerances of External Components
Rev.1, Apr. 1994, page 16 of 40