參數(shù)資料
型號: HA12155
廠商: Hitachi,Ltd.
英文描述: Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
中文描述: 音頻信號處理器(杜比B / C型與錄音系統(tǒng)星期日的盒式收錄機)
文件頁數(shù): 22/57頁
文件大?。?/td> 463K
代理商: HA12155
HA12155NT/HA12157NT
Rev.4, Jun. 1997, page 22 of 57
The Application of Equalizer Frequency Response
EQ
IN
R1
R2
R3
OP1
_
Gm1
_
OP2
_
Gm2
+
F / Q
OP5
+
R6
R7
R10
EQ
OUT
R9
R8
GH
GL
FM
R4
R5
Gm4
_
OP6
Gm3
OP3
_
Gm5
+
OP7
Gm6
+
OP4
+
C3
GP
C1
C2
+
_
+
_
+
+
_
+
+
+
+
_
_
_
_
_
Figure 9 REC Equalizer Block Diagram
Transfer Function:
Vout
Vin
=
R
2
+
R
3
R
2
Gm5R
8
R
10
R
9
1
+
C3
Gm4
1
+
Gm6
C3
Gm4S
+
Gm1R
4
R
10
R
6
+
R
7
C2
C2
+
R
4
1
+
R
4
R
5
R7
R
6
+
R
7
R
5
C1
Gm2
C2
2
=
4.16
R
REF
R
GL
1
+
6.67
×
10
10
R
FM
R
GH
R
GL
S
1
+
6.67
×
10
10
R
FM
S
+
RGP
3.0
×
10
10
R
FQ
S
1
+
4.5
×
10
11
R
FQ
S
+
2.5
×
10
20
R
FQ
R
F/ Q
S
2
*R
REF
-----25 pin bias resistance
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA12155NT 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
HA12155NT/HA12157NT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HA12157NT 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
HA12159 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FM Receiver Circuit
HA12160 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)