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 TRWMEN
27hRW2
=1 or is digital output for
TRWMEN
27hRW2
=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
4-3