HA12215F Datasheet, PDF (25/69 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

12
V_S = ±7.0V
Dolby B-NR
10
8
6
4
2
0
100
0
−2
−4
−6
−8
−10
V_S = ±7.0V
Dolby B-NR
−12
100
Encode Boost vs. Frequency
1k
Frequency (Hz)
Decode Cut vs. Frequency
1k
Frequency (Hz)
HA12215F
−40dB
−30dB
−20dB
−10dB
0dB
10k
20k
0dB
−10dB
−20dB
−30dB
−40dB
10k
20k
Rev.5, Oct. 1999, page 25 of 69