HA12134A Datasheet, PDF (19/27 Pages) Hitachi Semiconductor – Dolby B-Type Noise Reduction System

10
HA12135A
3
1.0
HA12134A, HA12135A, HA12136A
VCC = 12 V
0.3
0.1
100 Hz
0.03
10 kHz
1 kHz
0.01
–20 –15 –10 –5
0
5 10 15 20
Vout [dB]
Figure 23 PB NR-ON Total Harmonic Distortion vs. Output Level
22
HA12135A
20
PB NR-ON
18
REC NR-OFF
PB NR-OFF
16
REC NR-ON
14
12
10
7 8 9 10 11 12 13 14 15 16
Supply voltage V CC[V]
Figure 24 Maximum Output Level vs. Supply Voltage
Rev.3, Jun. 1999, page 19 of 27