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IC BLOCK DIAGRAM & DESCRIPTION
U0805 LA9703W(DVD RF AMP.)
APC
LPF1
LPF2
LPF1
BPF
BH
PH
PH
DOOUT
LPF2
DPD
EQ
APC
LDTH
LDTH
LDON1
LDON1
LDON2
LDON2
AGOF
SREF
BCA
GU
GU
GU
GU
GU
SGC
XHTR
SREF
SREF
SREF1
SREF
XHTR
XHTR
DPD/TE
WO/PP
SREF
SGC
SREF
SREF
FEBL
PREF
PREF
FEBL
DVD/CD DPD/TE WO/PP
VCC
TH
TH
XHTR
SGC
SGC
SGC
BST
FC
FEBL
TEBL
BCA
BCA
BCA
FC BST
DVD/CD
VCC
VCC
PREF
AGOF
AGOF
GU
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
59
60
61
62
63
64
58
26
SREF1
PH
BH
ISET
WOC
PPN
PP
WO
TE
FE
RREC
TEBL
CP
FEBL
FC
BST
SGC
XHTR
TH
VCC
WO/PP
DPD/TE
DVD/CD
GU
BCA
AGOF
LDON2
LDON1
LDTH
GND
LDS2
LDD2
LDS1
LDD1
TIN2
TIN1
PIN2
PIN1
FIN2
FIN1
GND
PD4
PD3
PD2
PD1
PDRF
VCC
CAP
BCAI
PHC
SREF
LPC
N/C
RFON
RFOP
GND
FSET
PREF
RFN
RFP
CAO
VCC
CAN
N/C
Functions
Customer OP amp. + input
Power supply (For DPD)
Pickup signal input
Pickup signal input
Pickup signal input
Pickup signal input
Pickup signal input
Ground (For DPD)
Pickup signal input
Pickup signal input
Pickup signal input
Pickup signal input
Pickup signal input
Pickup signal input
APC 1 output
APC 1 monitor input
APC 2 output
APC 2 monitor input
Ground (Servo system)
APC 1 threshold change
APC 1 laser ON
APC 2 laser ON
RFAGC OFF
PH discharge coeffcient change
RF, servo signal gain up
RF, EQL band change
TE output change
WO output change
Power supply (Servo system)
Tracking hold (H:hold)
Tracking bottom band change (High band)
Servo gain control (RREC, FE, PP, TE)
Terminal No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Symbole
CAP
VCC
PDRF
PD1
PD2
PD3
PD4
GND
FIN1
FIN2
PIN1
PIN2
TIN1
TIN2
LDD1
LDS1
LDD2
LDS2
GND
LDTH
LDON1
LDON2
AGOF
BCA
GU
DVD/CD
DPD/TE
WO/PP
VCC
TH
XHTR
SGC
Terminal No
Symbole
Functions
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
BST
FC
FEBL
TEBL
CP
RREC
FE
TE
WO
PP
PPN
WOC
ISET
BH
PH
SREFI
BCAI
PHC
SREF
LPC
N/C
RFON
RFOP
GND
FSET
PREF
RFN
N/C
RFP
CAO
VCC
CAN
EQL boost adjusting
EQL I/O control
FE balance adjusting
TE balance adjusting
Charge pump gain setting resistor, condenser connect
Peflection output
Focus error output
Tracking error output
WO/push-pull output
Push/pull output
Push/pull gain setting resistor connect
DC cut capacity connect
BPF center frequency setting resistor connect
RF bottom detection output
RF peak detection output
SREF setting
Peak hold detection setting resistor connect (When SCA)
RF-AGC PH detection conderser connect
Servo signal voltage reference output
RE DC servo condenser connect
N/C
RF - output
RF + output
Ground (RF system)
EQL frequency setting resistor connect
Voltage refernce output (For pick)
RF signal - input
N/C
RF input
Customer OP amp. output
Power supply (RF system)
Customerm OP amp. - input
