Pin No.
|
Mark
|
I/O
|
Function
|
1
|
PDE
|
I
|
Tracking signal input 1
|
2
|
PDF
|
I
|
Tracking signal input 2
|
3
|
VCC
|
I
|
Power supply
|
4
|
PDA
|
I
|
Focus signal input terminal 1
|
5
|
PDB
|
I
|
Focus signal input terminal 2
|
6
|
LPD
|
I
|
APC amp input
|
7
|
LD
|
O
|
APC amp output
|
8
|
RF
|
O
|
RFsumming output
|
9
|
RFIN
|
I
|
Detector’s input
|
10
|
CSBRT
|
I
|
Capacitor for OFTR connection
|
11
|
CEA
|
I
|
Capacitor for HPF amp connection
|
12
|
BDO
|
O
|
BDO output (“H” : drop out)
|
13
|
LDON
|
I
|
APC control
|
14
|
GND
|
-
|
Ground
|
15
|
/RFDET
|
O
|
NRFDET output (“L” : detection)
|
16
|
PDOWN
|
O
|
Power-down input
|
17
|
OFTR
|
O
|
OFTR output
|
18
|
NC
|
O
|
N.C.
|
19
|
ENV
|
O
|
3T-ENV output
|
20
|
NC
|
I
|
N.C.
|
21
|
NC
|
I
|
N.C.
|
22
|
TEN
|
I
|
TE amp input
|
23
|
TEOUT
|
O
|
TE amp output
|
24
|
FEOUT
|
O
|
FE amp output
|
25
|
FEN
|
I
|
FE amp input
|
26
|
VREF
|
O
|
Reference voltage output
|
27
|
TBAL
|
I
|
Tracking balance control
|
28
|
FBAL
|
I
|
Focus balance control
|