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IC DESCRIPTION-1/2 (LA9250M)-2/2
Pin No.
Pin Name
39
(NC)
40
TJP
41
TGL
42
TOFF
43
TES
44
HFL
45
CLV
46
GND
47
RF
48
RF-
49
SLC
50
SLI
51
DEF
52
DRF
53
FSC
54
TBC
55
FSS
56
VCC
57
REFI
58
VR
59
LF2
60
PH1
61
BH1
62
LDD
63
LDS
64
(NC)
I/O
—
No connection.
I
Track jump signal input from the DSP.
I
Tracking gain control signal input from the DSP.
I
Tracking off control signal input from the DSP.
O
TES signal output to the DSP.
O
Output for the HFL signal that indicates whether the main beam is positioned over pits or mirror.
I
CLV error signal input from the DSP.
—
GND.
O
RF output.
—
In conjunction with the RF pin, sets the RF gain and sets the EFM 3T compensation.
O
Output for control of the RF waveform data slice level according to the DSP.
I
Input for control of the RF waveform data slice level according to the DSP.
O
Disc defect detection output.
O
RF level detection output.
O
Focus search smoothing capacitor output.
—
E/F balance variation range setting.
—
Focus search mode setting.
—
VCC.
—
Reference voltage bypass capacitor connection.
O
Reference voltage output.
—
Disc defect detection time constant setting.
—
RF signal peak hold capacitor connection.
—
RF signal bottom hold capacitor connection.
O
APC circuit output.
I
APC circuit input.
—
No connection.
Description
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