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Part Name
Description
HA12220 View Datasheet(PDF) - Hitachi -> Renesas Electronics
Part Name
Description
MFG CO.
HA12220
CD-ROM Drive Head Amplifier IC
Hitachi -> Renesas Electronics
HA12220 Datasheet PDF : 20 Pages
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HA12220F
Block Diagram
0.1
µ
28 27 26
RF1 V
CC
BYPS
BIAS
RF2
1
RF3
2
RF4
3
EQ
–
+
RFS
10
µ
25
GND
VCF
+
–
VCB
HD49250
1
µ
0.1
µ
0.015
µ
24 23
22
21
RFC AGCF AGCO
DFH
AGC
Gain changing
DEFECT
DFT
20
HD49250
–
+
FSA
FOK
+
–
MIRH
19
0.033
µ
MIRR
MIRR
18
HD49250
–
+
FE
FVR2
+FA2
–
Gain=12dB Typ
+FA
–
FVR
Offset
FOK
17
HD49250
TR1
4
TR2
5
+TR1
–
BAL
+TR2
–
TVR
+TE
–
TLPF +
–
+TA
–
TVR2
TVR
Gain=8dB Typ
XLT
IIL
16
HD49250
MD
6
APC
BUF
Interface
DATA
15
HD49250
LD TE
FE
7
8
9
CI
CO VC
10 GND 11
12
µ
-COM
HD49250 HD49250 ADC
+
µ
-COM
100
µ
DAC
XRST CLK
13
14
µ
-COM HD49250
Rev.1, Apr. 1997, page 2 of 20
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