Advertisement
12. Printed Circuit Board and Wiring Connection
Diagram
13. Block Diagram
14. Terminal Function of ICs
14.1. IC101(AN8885SBE1V): / Servo Amplifier
I/O
Pin
Terminal
No.
Name
1
PDE
I
Tracking signal input (1) terminal
2
PDF
I
Tracking signal input (2) terminal
3
I
Power supply terminal
V
DD
4
PDA
I
Focus signal input (1) terminal
5
PDB
I
Focus signal input (2) terminal
6
LPD
-
Not used, open
7
LD
-
Not used, open
8
RF
O
RF addition output terminal
9
RF IN
I
RF detection signal input
terminal
10 CSBRT
I
Connected to V
capacitor
11
CEA
I
Connected to V
capacitor
12
BDO
O
Dropout signal output terminal
13
LDON
I
Laser ON signal input terminal
14
GND
-
GND
15 /RFDET
O
RF detection signal output
terminal
16 PDOWN
O
Reduced voltage detection
signal output
17
OFTR
O
Off-track signal output terminal
18 DEFLVL
I
Laser intermittent drive ON/OFF
input
19
ENV
O
RF envelope signal output
terminal
20
GCTL
I
Input for CD-RW
21 EQSW
I
EQ characteristic drive signal
input
22
TEIN
I
Tracking error amplifier input
terminal
23 TEOUT
O
Tracking error amplifier output
terminal
Function
through
DD
through
DD
17
Advertisement
