HA12226F Datasheet, PDF (79/86 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

HA12226F/HA12227F
Equalizer Signal to Noise Ratio vs. Supply Voltage (2)
70
f = 1kHz
A-WTG filter
High speed
HN
HC
65
60
55
11
12
13
14
15
Supply Voltage (V)
REC-cal Correction vs. V_REC-cal
5
f = 3kHz
4
GP-cal open
V_CC = 12V
Norm speed
3 _{Norm tape}
2
1
0
−1
−2
−3
−4
−5
0
1
2
3
4
5
V_REC-cal (V)
Rev.6, Dec. 2000, page 79 of 86