-23-
1, 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Pin No. Pin Name I/O Description
IC DESCRIPTION-1/2 (LA9250M)-1/2
FIN2, 1
E
F
TB
TE-
TE
TESI
SCI
TH
TA
TD-
TD
JP
TO
(NC)
FD
FD-
FA
FA-
FE
FE-
SP
SPG
SP-
SPD
SLEQ
SLD
SL-
SL+
OSC
(NC)
SLOF
TGRF
SP8
EFBAL
FSTA
LASER
Pickup photodiode (focus, RF) connection.
Pickup photodiode (tracking) connection.
TE signal DC component input. Pickup photodiode (tracking) connection.
TE signal gain setting resistor connection. A resistor is connected between this pin and TE.
TE signal output.
TES comparator input. Takes the bandpass filtered TE signal as its input.
Shock detection input.
Tracking gain time constant setting.
TA amplifier output.
In conjunction with the TD and VR pins, used to form the tracking phase compensation circuit
constant.
Tracking phase compensation setting.
Track jump signal amplitude setting.
Tracking control signal output.
No connection.
Focusing control signal output.
In conjunction with the FD and FA pins, used to form the focusing phase compensation circuit
constant.
In conjunction with the FD- and FA- pins, used to form the focusing phase compensation circuit
constant.
In conjunction with the FA and FE pins, used to form the focusing phase compensation circuit
constant.
FE signal output.
FE signal gain setting resistor connection. A resistor is connected between this pin and FE.
CLV pin input signal inverted output.
Gain setting resistor connection. (12 cm spindle mode)
In conjunction with the SPD pin, spindle phase compensation time constant connection.
Spindle control signal output.
Sled phase compensation time constant connection.
Sled control signal output.
Sled feed signal input from the microcontroller.
Oscillator frequency setting.
No connection.
Sled servo off control input.
Tracking servo gain RF level follower function setting.
Spindle 8 cm/12 cm mode switching control from the DSP.
E/F balance adjustment signal input from the DSP.
Focus search control signal input from the DSP.
Laser on/off control from the DSP.
I
I
I
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O
I
I
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O
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O
—
O
I
O
I
O
I
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—
—
O
—
O
I
I
—
—
I
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I
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I
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