HA12134A Datasheet, PDF (18/27 Pages) Hitachi Semiconductor – Dolby B-Type Noise Reduction System

HA12134A, HA12135A, HA12136A
10
HA12135A
3
1.0
VCC = 12 V
0.3
10 kHz
0.1
1 kHz
100 Hz
0.03
0.01
–20 –15 –10 –5
0
5 10 15 20
Vout [dB]
Figure 21 REC NR-ON total Harmonic Distortion vs. Output Level
10
HA12135A
3
1.0
V CC= 12 V
0.3
0.1
0.03
1 kHz
100 Hz
10 kHz
0.01
–20 –15 –10 –5
0
5 10 15 20
Vout [dB]
Figure 22 PB NR-OFF Total Harmonic Distortion vs. Output Level
Rev.3, Jun. 1999, page 18 of 27