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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 circuitr
y
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 circuitr
y
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
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