HA12179F Datasheet, PDF (28/40 Pages) Hitachi Semiconductor – Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp)

HA12179F
0.5
0.2
0.1
0.05
Total Harmonic Distortion vs. Frequency Characteristics (1)
–10 dB
0 dB
+10 dB
Audio
Band
Pass
400 Hz High pass
+
80 kHz Low pass
0.02
0.01
50
100
V_CC=9 V
TAI RECout
RECmode NR-ON
300
1k
3k
Frequency (Hz)
10 k
30 k
Total Harmonic Distortion vs. Frequency Characteristics (2)
0.5
–10 dB
0 dB
V_CC=9 V
TAI RECout
0.2
+10 dB
RECmode NR-OFF
Audio 400 Hz High pass
Band
+
Pass 80 kHz Low pass
0.1
0.05
0.02
0.01
50
100
300
1k
3k
Frequency (Hz)
10 k
30 k
Rev.1, Apr. 1994, page 28 of 40