22
Pin No.
Pin Name
I/O
Description
1
PPIT
O
Pit/group identification signal output. Hi= pit, Lo= group.
2
VCC
Power supply pin of matrix system.
3
J
I
Photo diode connection pin of pickup. Form RF signal with I pin.
4
I
I
Photo diode connection pin of pickup. Form RF signal with J pin.
5
F
I
Photo diode connection pin of pickup. Form TE signal with E pin.
6
E
I
Photo diode connection pin of pickup. Form TE signal with F pin.
7
D
I
8
C
I
Photo diode connection pin of pickup. It forms FE signal, ABCD signal, and WOO signal.
9
B
I
10
A
I
11
VEE
Ground pin of matrix system.
12
LDD
O
APC circuit output pin.
13
LDS
I
APC circuit input pin.
14
LDREF
I
Input pin for laser power setting.
15
FBAL
I
F balance adjustment pin. (Connected to VC)
16
TBAL
I
EF balance adjustment pin.
17
TOFF
I
Offset adjustment pin of TE signal.
18
FOFF
I
Offset adjustment pin of FE signal.
19
AOFF
I
Offset adjustment pin of ABCD signal.
20
SGC
I
VCA gain control pin.
21
DSW0
I
Disc mode setting pin. Hi= Disc with low reflectance, Lo= Disc with high reflectance. Laser OFF
when DSWO and DSW1 are Lo.
22
DSW1
I
Disc mode setting pin. Hi= Track in pit line, Lo= Track in group. Laser OFF when DSWO and
DSW1 are Lo.
23
VR
By-pass capacitor connection pin for 1/2 VCC.
24
VC
O
1/2 VCC output pin.
25
FE
O
Focus error signal output pin.
26
TE
O
Tracking error signal output pin.
27
ABCD
O
Main beam light amount signal output pin.
28
HFLIN
I
HEL signal forming pin in group mode.
29
BOTTOM
O
Bottom signal output pin of RF signal.
30
PEAK
O
Peak signal output pin of RF signal.
31
HFL
O
HFL signal (track ON/OFF) output pin.
32
BHC
Connected to VEE via capacitor.
33
PHC
Connected to VEE via capacitor.
34
RFVEE
Ground pin of RF system. (Connected to VEE)
35
EQO
O
RF equalizer output pin.
36
EQI
I
RF equalizer input pin.
37
RFO
O
RF signal output pin.
38
RFVCC
Power supply pin of RF system. (Connected to VCC)
39
ADIPCR
O
ADIP carrier signal output pin.
IC, LA9607T
