7-1
SECTION 7
IC PIN FUNCTION DESCRIPTION
DVP-FX700
7-1. SYSTEM CONTROL PIN FUNCTION (MAIN BOARD IC500: MT1379)
Pin No.
Pin Name
I/O
Function
1
EREF
I
Current reference input. It generates reference current for data PLL.
2
PLLVSS
–
Ground pin for PLL and related analog circuitry.
3
LPIOP
O
Poditive output of the low pass filter
4
LPION
O
Negative output of the low pass filter.
5
LPFON
O
Negative output of loop filter amplifter
6
LPFIP
I
Poditive input of loop filter ampliftier
7
LPFIN
I
Negative input of loop filter amplifier
8
LPFOP
O
Positive output of loop filter amplifier
9
JITFO
O
RF jitter meter output
10
JITFN
I
Negative input of the operation amplifier for RF jigger meter
11
PLLVDD3
–
A+3.3v
12
FOSO
O
Focus servo output.
13
TRSO
O
Tracking servo output.
14
TROPENPWM
O
nc
15
PWMOUT1
O
nc
16
PWMOUT2
O
DPD mute control(PWM)
17
DVDD2
–
D+2.5v
18
DMSO
O
Spindle motor control output.(PWM)
19
FMSO
O
Sled motor control (PWM)
20
DVSS
–
Ground pin
21
FG
I
Spindlr motor Hall sensor input.
22
A8
I/O
FROM address 8
23
A9
I/O
FROM address 9
24
A10
I/O
FROM address 10
25
A11
I/O
FROM address 11
26
A12
I/O
FROM address 12
27
A13
I/O
FROM address 13
28
DVSS
–
Ground pin
29
A14
I/O
FROM address 14
30
A15
I/O
FROM address 15
FROM data 7
FROM data 6
FROM data 5
FROM data 4
–
D+3.3v
FROM data 3
FROM data 2
FROM data 1
39
AD0
I/O
FROM data 0
40
A0
I/O
FROM address 0
41
A1
I/O
FROM address 1
42
DVDD2
–
D+2.5v
43
A2
I/O
FROM address 2
44
A3
I/O
FROM address 3
45
A4
I/O
FROM address 4
46
A5
I/O
FROM address 5
47
A6
I/O
FROM address 6
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