PIN FUNCTION DESCRIPTION
Pin | Symbol | Type | Description |
1 | IREF | Analog Input | Current reference input. It generate reference current for data PLL. |
|
|
| Connect an external 100K resistor to this pin and PLLVSS. |
2 | PLLVSS | Ground | Ground for data PLL and related analog circuitry |
3 | LPIOP | Analog Output | Positive output of the low pass filter |
4 | LPION | Analog Output | Negative output of the low pass filter |
5 | LPFON | Analog output | Negative output of loop filter amplifier |
6 | LPFIP | Analog Input | Positive input of loop filter amplifier |
7 | LPFIN | Analog Input | Negative input of loop filter amplifier |
8 | LPFOP | Analog Output | Positive output of loop filter amplifier |
9 | JITFO | Analog Output | RF jitter meter output |
10 | JITFN | Analog Input | Negative input of the operation amplifier for RF jigger meter |
11 | PLLVDD3 | Power | Power for data PLL and related analog circuitry |
12 | FOO | Analog Output | Focus servo output. PDM output of focus servo compensator |
13 | TRO | Analog Output | Tracking servo output. PDM output of tracking servo compensator |
14 | TROPENPWM | Analog Output | Tray open output, controlled by microcontroller. |
|
|
| This is PWM output for TRWMEN27hRW2=1 or is digital output for |
|
|
| TRWMEN27hRW2=0 |
15 | PWMOUT2 | Analog Output | The general PWM output |
16 | DVDD2 | Power | 2.5V power |
17 | DMO | Analog Output | Disk motor control output. PWM output |
18 | FMO | Analog Output | Feed motor control. PWM output |
19 | FG | Input, Pull Up | Motor Hall sensor input |
20 | DVSS | Ground | Ground |
21 | HIGHA0 | Inout, Pull Up | Microcontroller address 8 |
22 | HIGHA1 | Inout, Pull Up | Microcontroller address 9 |
23 | HIGHA2 | Inout, Pull Up | Microcontroller address 10 |
24 | HIGHA3 | Inout, Pull Up | Microcontroller address 11 |
25 | HIGHA4 | Inout, Pull Up | Microcontroller address 12 |
26 | HIGHA5 | Inout, Pull Up | Microcontroller address 13 |
27 | DVSS | Ground | Ground |
28 | HIGHA6 | Inout, Pull Up | Microcontroller address 14 |
29 | HIGHA7 | Inout, Pull Up | Microcontroller address 15 |
30 | AD7 | Inout | Microcontroller address/data 7 |
31 | AD6 | Inout | Microcontroller address/data 6 |
32 | AD5 | Inout | Microcontroller address/data 5 |
33 | AD4 | Inout | Microcontroller address/data 4 |
34 | DVDD3 | Power | 3.3V power |
35 | AD3 | Inout | Microcontroller address/data 3 |
36 | AD2 | Inout | Microcontroller address/data 2 |
37 | AD1 | Inout | Microcontroller address/data 1 |
38 | AD0 | Inout | Microcontroller address/data 0 |
39 | IOA0 | Inout, Pull Up | Microcontroller address 0 / GPIO0 |
40 | IOA1 | Inout, Pull Up | Microcontroller address 1 / GPIO1 |
41 | DVDD2 | Power | 2.5V power |
42 | IOA2 | Inout, Pull Up | Microcontroller address 2 / GPIO2 |
43 | IOA3 | Inout, Pull Up | Microcontroller address 3 / GPIO3 |
