-26-
IC BLOCK DIAGRAM-1/2
IC, CXA2550
IC, BU4066
7
6
5
4
3
2
1
VEE
PD2
PD1
PD
LD
AGC
VTH
10
9
8
7
VC
E1
E
F
7
15
16
17
18
19
20
RFM
RFO
RF1
RFTC
AGC CONT
LD ON
VCC
11
12
13
14
TE
FE BIAS
FE
1k
56k
10k
56k
10k
10k
10k
55k
13.4k 50
µ
A
Vcc
VC
670mV
VREF 1.25V
VEE
VEE
APC PD.AMP
APC LD
AMP
Vcc
15k
VC
6k
54k
VEE
VC
2k
2k
32k
32k
174k
24p
24p
VC
87k
154k
95k
30k
30k
96k
TRACKING
ERROR
AMP
VEE
30k
30k
15k
49
VC
Vcc
VC
26k
260k
12p
13k
VC
260k
13k
12p
VC
VC
25k
VEE
VC
VC
VC
6p
8k
10k
2k
6p
8k
2k
10k
VC
FOCUS
ERROR
AMP
OUT/IN IN/OUT
SWA
SWD
OUT/IN IN/OUT
IN/OUT OUT/IN
SWB
SWC
IN/OUT OUT/IN
8
10
11
12
13
14
F IN
F OUT
A/C IN
A/C OUT
CONTROL
(A/C)
CONTROL
(E)
VDD
7
6
5
4
3
2
1
9
VSS
CONTROL
(F)
CONTROL
(B/D)
B/D OUT
B/D IN
E OUT
E IN
