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IC DESCRIPTION-1/3 (LA9241ML)-1/2
QQ
3 7 63 1515 0
Pin No.
Pin Name
1
FIN2
2
FIN1
3
E
4
F
5
TB
6
TE–
7
TE
8
TESI
9
SCI
10
TH
11
TA
12
TD–
13
TD
14
JP
15
TO
TE
L 13942296513
16
FD
17
FD–
18
FA
19
FA–
20
FE
21
FE–
22
AGND
23
SP
24
SPI
25
SPG
26
SP–
27
SPD
28
SLEQ
www
29
SLD
30, 31
SL–, SL+
32, 33
JP–, JP+
.
34
TGL
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I/O
Pin to which external pickup photo diode is connected. RF signal is created by adding with the
I
FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal.
I
Pin to which external pickup photo diode is connected.
Pin to which external pickup photo diode is connected. TE signal is created by subtracting from
I
the F pin signal.
I
Pin to which external pickup photo diode is connected.
I
DC component of the TE signal is input.
I
Pin to which external resistor setting the TE signal gain is connected between the TE pin.
O
TE signal output pin.
TES "Track Error Sense" comparator input pin. TE signal is passed through a band-pass filter
I
then input.
I
Shock detection signal input pin.
I
Tracking gain time constant setting pin.
O
TA amplifier output pin.
Pin to which external tracking phase compensation constants are connected between the TD and
I
VR pins.
I
Tracking phase compensation setting pin.
I
Tracking jump signal (kick pulse) amplitude setting pin.
O
Tracking control signal output pin.
O
Focusing control signal output pin.
Pin to which external focusing phase compensation constants are connected between the FD and
I
FA pins.
Pin to which external focusing phase compensation constants are connected between the FD–
I
and FA– pins.
Pin to which external focusing phase compensation constants are connected between the FA and
I
FE pins.
O
FE signal output pin.
I
Pin to which external FE signal gain setting resistor is connected between the FE pin.
—
Analog signal GND.
—
No connection.
O
Single ended output of the CV+ and CV– pin input signal.
Pin to which external spindle gain setting resistor in 12 cm mode is connected. (Not
I
connected)
Pin to which external spindle phase compensation constants are connected together with SPD
I
pin.
O
Spindle control signal output pin.
I
Pin to which external sled phase compensation constants are connected.
O
Sled control signal output pin.
I
Sled advance signal input pin from microprocessor.
x
ao
u163
y
I
Tracking jump signal input pin from DSP.
i
I
Tracking gain control signal input from DSP. Low gain when TGL = H.
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2 9
8
Description
Q Q
3
6 7
1 3
1 5
co
.
-23-
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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