HA12226F Datasheet, PDF (49/86 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

HA12226F/HA12227F
Ripple Rejection Ratio vs. Frequency (PASS mode) (3)
20
V_CC = 12V
PASS mode
EQOUT
0
RECOUT
−20
NR-ON
−40
RECOUT
PBOUT _NR-OFF
−60
−80
10
100
1k
10k
Frequency (Hz)
55
V_CC = 12V
50 ^{Norm speed}
45
40
35
30
25
20
15
10
5
10
Equalizer Amp. Gain vs. Frequency (1)
Crom
Norm
100
1k
10k
Frequency (Hz)
100k
100k
Rev.6, Dec. 2000, page 49 of 86