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39
IC603 (BA6792-Y) : Sled Motor/Loading Motor Control Drive IC
It controls the sled movement and takes the tray to open/close in track search mode.
IC604 (BA6792-Y) : Focus/Tracking Actuator Control Drive IC
This Drive IC controls the Focus/Tracking Actuator receiving the focus error or tracking error signal
from IC301.
25
V / I
V c c / 2
10K
V c c / 2
V c c / 2
V c c / 2
V c c / 2
V c c / 2
-
-
+
-
+
-
+
+
-
+
V / I
T. S. D
MUTE
1
2
3
4
5
6
7
8
9
10
11
12
13
24
23
22
21
20
19
18
17
16
15
14
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
10K
-
+
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Pin No.
14
15
16
17
18
19
20
21
22
23
24
25
Function
No connecion
Driver CH1 negative output
Driver CH1 positive output
No connection
V
CC
Substrate Ground
No connection
Substrate Ground
V
CC
No connection
Driver CH2 positive output
Driver CH2 negative output
No connection
Function
No connection
CH2 input, gain adjustment pin
Driver CH2 input
No connection
No connection
Bias amplifier input
Driver mute control input
No connection
No connection
Driver CH1 input
CH1 input, gain adjustment pin
No connection
Pin Name
N.C.
OUT
1
-
OUT
1
+
N.C.
V
CC
GND
N.C.
GND
V
CC
N.C.
OUT
2
+
OUT
2
-
N.C.
3
Pin Name
N.C.
IN
2
IN
2
N.C.
N.C.
BIAS
MUTE
N.C.
N.C.
IN
1
IN
1
N.C.
Pin Description
Block Diagram
NOTE) 1. Symbol of + and - (output of DRIVERS) means polarity to input pin. (For example if voltage of pin 26
is high, pin 3 is high.)
2. Radiation pins short-circuit with pin 8 inside.
°Ø
°Ø