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コンポーネント説明
HA12155 データシートの表示(PDF) - Hitachi -> Renesas Electronics
部品番号
コンポーネント説明
メーカー
HA12155
Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
Hitachi -> Renesas Electronics
HA12155 Datasheet PDF : 57 Pages
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HA12155NT/HA12157NT
Gain
g1
3dB
BW
g2
g3
f1 f2
f3
f
Figure 10 REC Equalizer Frequency Response
gl
=
4.16
R
REF
(
6.67
×
R
GP
+
R
GH
)
g 2
=
4.16
×
R
GL
R
REF
g3
=
4.16
×
R
GH
R
REF
f1
=
2
π
×
6.67
1
×
10
−
10
×
R
FM
f2
=
2
π
×
6.67
R
GL
×
10
−
10
×
R
FM
×
R
GH
f3
=
1
2
π
⋅
0.3
2.25
×
10
−
21
×
R
FQ
×
R
F / Q
BW
=
1
4
π ×
2.78
×
10
−
10
×
R
F/
Q
Q
=
f3
=
3.51
×
R
F / Q
BW
R
F/Q
Rev.4, Jun. 1997, page 23 of 57
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