IC, LA9241ML
Pin No.Pin NameI/ODescription
For the connection of the pickup photodiode. Addition to the FIN1 pin creates an RF
1FIN2Osignal and subtraction from it create an EF signal.
2FIN1OFor the connection of the pickup photodiode.
For the connection of the pickup photodiode. Subtraction from the F pin creates a TE
3EOsignal.
4FOFor the connection of the pickup photodiode.
5TBIInputs the DC components in the TE signal.
6TE�OFor the connection of a resistor which sets the gain of the TE signal between this pin
and the TE pin.
7TEOTE signal output.
8TESIITES (track error sense) comparator input.The TE signal is passed through a BPF.
9SCIIShock detection input.
10THISets the time constant for the tracking gain.
11TAOTA amp output.
12TD�IComposes the tracking phase compensation constant between the TD and VR pins.
13TDOSets the tracking phase compensation.
14JPISets the amplitude of the tracking jump signal (kick pulses).
15TOOTracking control signal output.
16FDOFocusing control signal output.
17FD�IComposes the focusing phase compensation constant between the FD and FA pins.
18FAOComposes the focusing phase compensation constant between the FD- and FA- pins.
19FA�IComposes the focusing phase compensation constant between the FA and FE pins.
20FEOFE signal output.
21FE�IFor the connection of a resistor which sets the gain of the FE signal between this pin
and the TE pin.
22AGNDOGround of analog signals.
23SPOSingle-ended output of the signals input to the CV+ and CV- pins.
24SPIISpindle amp input.
25SPGIFor the connection of a resistor which sets the gain in the spindle 12cm mode.
26SP�IFor the connection of the spindle phase compensation constant with the SPD pin.
27SPDOSpindle control signal output.
28SLEQIFor the connection of sled phase compensation constant.
29SLDOSled control signal output.
30, 31SL�, SL+ISled feed signal input from the microprocessor.
32, 33JP�, JP+ITracking signal input from the DSP.
34TGLITracking gain control signal input from the DSP. Low gain when TGL is OH�.
35TOFFITracking off control signal input from the DSP. Off when TOFF is OH�.
36TESOTES signal output to the DSP.
The HFL (high frequency level) signal is used to judge whether the main beam is
37HFLOpositioned on the pit or on the mirror.
38SLOFISled servo off control input.
24 |