7-1
Pin
Name
I/O
Description
number
1
AGND
-
Analog ground
2
DVDA
I
AC coupled input path A
3
DVDB
I
AC coupled input path B
4
DVDC
I
AC coupled input path C
5
DVDD
I
AC coupled input path D
6
DVDRFIP
I
AC coupled DVD RF signal
7
DVDRFIN
I
TP45
8
MA
I
DC coupled main-beam RF signal input A
9
MB
I
DC coupled main-beam RF signal input B
10
MC
I
DC coupled main-beam RF signal input C
11
MD
I
DC coupled main-beam RF signal input D
12
SA
I
DC coupled sub-beam RF signal input A
13
SB
I
DC coupled sub-beam RF signal input B
14
SC
I
DC coupled sub-beam RF signal input C
15
SD
I
DC coupled sub-beam RF signal input D
16
CDFON
I
TP52
17
CDFOP
I
TP53
18
TNI
I
3 beam satellite PD signal negative input
19
TPI
I
3 beam satellite PD signal positive input
20
MDI1
I
Laser power monitor input
21
MDI2
I
Laser power monitor
22
LDO2
O
Laser driver output
23
LDO1
O
Laser driver output
24
SVDD3
-
Analog power 3.3V
25
CSO
O
Positive main beam summing output
26
RFLVL
O
Negative main beam summing output
27
SGND
-
Analog ground
28
V2REFO
O
Reference voltage 2.8V
29
V20
O
Reference voltage 2.0V
30
VREFO
O
Reference voltage 1.4V
O
Focus error monitor output
O
Tracking error monitor output
O
TE Slicing Level
O
TP162
I
TP163
I
TP164
O
Disk motor control output. PWM output.
O
Feed motor control. PWM output.
(-)
N.C.
40
PWMOUT1 /V_ADIN9
O
1stGeneral PWM output, or Version AD input 9
41
TRO
O
Tracking servo output. PDM output of tracking servo compensator
42
FOO
O
Focus servo output. PDM output of focus servo compensator
43
VPLLVSS
-
Analog ground for VPLL
44
CAPPAD
I
Capacitance connection
45
VPLLVDD3
-
Analog 3.3V Power for VPLL
46
USB_VSS
-
USB ground pin
47
USBP
I
USB port DPLUS analog pin
48
USBM
I
USB port DMINUS analog pinPin
SECTION 7
IC PIN FUNCTION DESCRIPTION
DVP-FX720
7-1. MPEG/DSP/RF PIN FUNCTION (MAIN BOARD U3: MT1389HD)
www. xiaoyu163. com
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9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
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