IC, LA9241ML
Pin No. | Pin Name | I/O | Description | |
|
|
|
| |
1 | FIN2 | O | For the connection of the pickup photodiode. Addition to the FIN1 pin creates an RF | |
signal and subtraction from it create an EF signal. | ||||
|
|
| ||
|
|
|
| |
2 | FIN1 | O | For the connection of the pickup photodiode. | |
|
|
|
| |
3 | E | O | For the connection of the pickup photodiode. Subtraction from the F pin creates a TE | |
signal. | ||||
|
|
| ||
|
|
|
| |
4 | F | O | For the connection of the pickup photodiode. | |
|
|
|
| |
5 | TB | I | Inputs the DC components in the TE signal. | |
|
|
|
| |
|
|
| For the connection of a resistor which sets the gain of the TE signal between this pin | |
6 | TE- | O | and the TE pin. | |
|
|
| ||
|
|
|
| |
7 | TE | O | TE signal output. | |
|
|
|
| |
8 | TESI | I | TES (track error sense) comparator input. The signal is passed through a BPF. | |
|
|
|
| |
9 | SCI | I | Shock detection input. | |
|
|
|
| |
10 | TH | I | Sets the time constant for the tracking gain. | |
|
|
|
| |
11 | TA | O | TA amp output. | |
|
|
|
| |
12 | TD- | I | Composes the tracking phase compensation constant between the TD and VR pins. | |
|
|
|
| |
13 | TD | I | Sets the tracking phase compensation. | |
|
|
|
| |
14 | JP | I | Sets the amplitude of the tracking jump signal (kick pulses). | |
|
|
|
| |
15 | TO | O | Tracking control signal output. | |
|
|
|
| |
16 | FD | O | Focusing control signal output. | |
|
|
|
| |
17 | FD- | I | Composes the focusing phase compensation constant between the FD and FA pins. | |
|
|
|
| |
18 | FA | O | Composes the focusing phase compensation constant between the FD and FA pins. | |
|
|
|
| |
19 | FA- | I | Composes the focusing phase compensation constant between the FD and FA pins. | |
|
|
|
| |
20 | FE | O | FE signal output. | |
|
|
|
| |
21 | FE- | I | For the connection of a resistor whichs sets the gain of the FE signal between this pin | |
and the TE pin. | ||||
|
|
| ||
|
|
|
| |
22 | O | Ground of analog signals. | ||
|
|
|
| |
23 | SP | O | ||
|
|
|
| |
24 | SPI | I | Spindle amp input. | |
|
|
|
| |
25 | SPG | I | For the connection of a resistor which sets the gain in the spindle 12cm mode. | |
|
|
|
| |
26 | SP- | I | For the connection of the spindle phase compensation constant with the SPD pin. | |
|
|
|
| |
27 | SPD | O | Spindle control signal output. | |
|
|
|
| |
28 | SLEQ | I | For the connection of sled phase compensation constant. | |
|
|
|
| |
29 | SLD | O | Sled control signal output. | |
|
|
|
| |
30 | SL- | I | Sled feed signal input from the microprocessor. | |
|
| |||
31 | SL+ | |||
|
| |||
|
|
|
| |
32 | JP- | I | Tracking signal input from the DSP. | |
|
| |||
33 | JP+ | |||
|
| |||
|
|
|
| |
34 | TGL | I | Tracking gain control signal input from the DSP. Low gain when TGL is "H". | |
|
|
|
| |
35 | TOFF | I | Tracking off control signal input from the DSP. Off when TOFF is "H". | |
|
|
|
| |
36 | TES | O | Outputs the TES signal to the DSP. | |
|
|
|
|
- 25 -