HA12226F Datasheet, PDF (30/86 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

HA12226F/HA12227F
Signal to Noise Ratio vs. Split Supply Voltage (1)
85
A, Bin, PB mode, NR-ON
Rin, REC mode, NR-OFF
80
A, Bin, PB mode, NR-OFF
A, Bin, PASS mode, PBOUT
f = 1kHz, CCIR/ARM filter
75 Rin → RECOUT = 300mVrms = 0dB
Ain
Bin
→ PBOUT = 580mVrms = 0dB
Rin, PEC mode, NR-ON
70
65
11
12
13
14
15
Supply Voltage (V)
Total Harmonic Distortion vs. Supply Voltage (1)
1.0
(REC mode, NR-OFF)
REC mode, NR-OFF
Rin → RECOUT = 300mVrms
100Hz (30kHz LPF)
1kHz (400Hz HPF + 30kHz LPF)
10kHz (400Hz HPF + 80kHz LPF)
Rin → PBOUT = 580mVrms
1kHz (400Hz HPF + 30kHz LPF)
0.1
0.01
11
12
13
14
15
Supply Voltage (V)
Rev.6, Dec. 2000, page 30 of 86