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HA12165 データシートの表示(PDF) - Hitachi -> Renesas Electronics

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HA12165 Datasheet PDF : 66 Pages
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HA12163 Series
10. PB Equalizer for Double Speed
PB equalizer can be design for double speed by using external components shown in figure 7.
Application data is shown in figure 8.
4.7 µ
+
R35
5.1 k
0.015 µ
R
No
Do
22 k
VR1
0.1 µ
+
No : Normal speed
Do : Double speed
* Please ajust RECOUT level to
be Dolby level with volume of
VR 1.
R38
330 k
R39
180
EQ OUT
TAI
R36 EQ
12 k OUT-M
R37
18 k
C25
0.01 µ
EQ
AMP.
NFI +
RIN
RAI
PBOUT
INPUT AMP.
+
NR
circuit
RECOUT
VREF
FIN
Unit R:
C: F
Figure 7 Application Circuit for Double Speed
60
50
40
30
20
10
20
100
1k
10 k
Frequency (Hz)
120 µ
70 µ
No (Normal speed)
R = 2.7 k
R = 2.2 k
R = 1.8 k
Do (Double speed)
R = 1.3 k
100 k
* OUTPUT = TAIpin
Figure 8 Application Data
Rev.4, Jun. 1999, page 22 of 66

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