20
D-EJ985
5-10.
IC PIN FUNCTION DESCRIPTION
•
IC403 TB2130AF (FOCUS/TRACKING COIL DRIVER, SLED MOTOR DRIVER, POWER CONTROL)
Pin No.
Pin Name
I/O
Description
1
VREF
I
Reference voltage input terminal
2
RF41
O
Power supply 4 (APC) section operational amplifier 1 output
3
PAPC
I
Power supply 4 (APC) section operational amplifier 1 non-invert input
4
VINDET
I
VIN detection signal input terminal Not used
5
RF4
O
Power supply 4 (APC) section operational amplifier 2 output
6
INM4
I
Power supply 4 (APC) section operational amplifier 2 invert input
7
APCREF
I
AGC control pulse signal input from the system controller
8
L5
—
Connected to the inductor for VG
9
VG
O
VG output terminal
10
GND
—
Ground terminal
11
SYNC
I
176.4 kHz clock signal input from the CXD3039AR
12
WAKE
I
Wakeup control signal input from the system controller (for system standby reset)
“L”: wakeup The stop status is reset with the falling edge of input signal
13
CLOK
I
Serial data transfer clock signal input from the system controller
14
DATA
I
Serial data input from the system controller
15
LATCH
I
Serial data latch pulse signal input from the system controller
16
RSTB
O
System reset signal output to the system controller “L”: reset
For several hundreds msec. after the power supply rises, “L” is output, then it changes to “H”
17
FI2
I
Sled servo drive signal (+) input from the CXD3039AR
18
RI2
I
Sled servo drive signal (–) input from the CXD3039AR
19
FI3
I
Not used
20
RI3
I
Not used
21
FI4
I
Tracking servo drive signal (+) input from the CXD3039AR
22
RI4
I
Tracking servo drive signal (–) input from the CXD3039AR
23
VD4
I
Power supply input terminal for tracking servo drive
24
RO4
O
Tracking coil drive signal (–) output
25
MGND4
—
Ground terminal (for tracking servo drive)
26
FO4
O
Tracking coil drive signal (+) output
27
VD34
I
Power supply input terminal for tracking servo drive
28
RO3
O
Not used
29
MGND3
—
Ground terminal
30
FO3
O
Not used
31
VD23
I
Power supply input terminal for sled servo drive
32
RO2
O
Sled motor drive signal (–) output
33
MGND2
—
Ground terminal (for sled servo drive)
34
FO2
O
Sled motor drive signal (+) output
35
VD12
I
Power supply input terminal for focus servo drive and sled servo drive
36
RO1
O
Focus coil drive signal (–) output
37
MGND1
—
Ground terminal (for focus servo drive)
38
FO1
O
Focus coil drive signal (+) output
39
VD1
I
Power supply input terminal for focus servo drive
40
FI2
I
Focus servo drive signal (+) input from the CXD3039AR
41
RI2
I
Focus servo drive signal (–) input from the CXD3039AR
42
CHGSW
O
Battery charge control transistor drive signal output
43
RS1
I
Battery charge current detection terminal
