HA12179F Datasheet, PDF (34/40 Pages) Hitachi Semiconductor – Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp)

HA12179F
0
–20
–40
–60
–80
20
Ripple Rejection Ratio vs. Frequency Characteristics (2)
V_CC = 9 V
REC mode
RECOUT, NR-ON
RECOUT, NR-OFF
100
1k
10 k
Frequency (Hz)
100 k
EQ-AMP. Gain vs. Frequency Characteristics
70
V_CC = 9 V
60
50
40
120 µ
70 µ
30
20
20
50 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k
Frequency (Hz)
Rev.1, Apr. 1994, page 34 of 40