49
MEX-R5
•
IC Pin Function Descripition
SERVO BOARD IC1 CXD5002R (DVD ANALOG FRONT-END)
Pin No.
Pin Name
I/O
Description
1, 2
RFIN, RFIP
I
Differential RF signal input terminal
3
SUMF
-
DC filter connection terminal for differential sum amplifier
4, 5
AGHPF1,
AGHPF2
-
High-pass filter connection terminal for AGC input block
6
AGFR
-
Filter connection terminal for AGC filter
7
VCC
-
Power supply terminal (+5V)
8
IREFE
-
Resistor connection terminal for cut-off frequency setting of RF equalizer
9
RF_GND
-
Ground terminal
10
EQHPF
-
High-pass filter connection terminal for AGC detection block
11
RFAC
O
Single RF signal output terminal
12, 13
EQOP, EQON
O
Differential RF signal output terminal Not used
14
TOPH
-
Top hold terminal for envelope detection
15
BOTH
-
Bottom hold terminal for envelope detection
16
BOTLPF
-
Low-pass filter connection terminal for bottom envelope detection
17
NC
-
Not used
18
GND
-
Ground terminal
19, 20
NC
-
Not used
21
TST
O
Output terminal for test
22
VDD_IO
-
Power supply terminal (+3.3V)
23
RFHLD
I
Hold control signal input terminal Fixed at "L" in this set
24
TZC
O
Tracking zero-cross output terminal Not used
25
MIRR
O
MIRROR detection signal output terminal
26
DFT
O
DEFECT detection signal output terminal
27
IO_GND
-
Ground terminal
28
XRST
I
System reset signal input from the reset signal generator
29
SCLK
I
Serial data transfer clock signal input from the DVD processor
30
SDATA
I/O
Serial data input/output terminal with the DVD processor
31
SDEN
I
Serial data transfer enable signal input from the DVD processor
32
NC
-
Not used
I
Detection signal input for tracking zero-cross
-
Power supply terminal (+3.3V)
Analog signal monitor output to the DVD processor
Tracking error signal output terminal
Lens position error signal output terminal
Pull-in error signal output terminal
Focus error signal output terminal
I
Light amount monitor input from the laser diode (for CD)
Laser diode on/off control signal output terminal (for CD)
42
SRV_GND
-
Ground terminal
43
PDDVD
I
Light amount monitor input from the laser diode (for DVD)
44
LDDVD
O
Laser diode on/off control signal output terminal (for DVD)
45
IREFT
-
Resistor connection terminal for reference current setting
46
VREF
O
Reference voltage (+2.5V) output terminal
47
VHALF
O
Reference voltage (+1.65V) output
48
V33
I
Voltage (+3.3V) input terminal for VHALF (pin 47)
49
VCC2
-
Power supply terminal (+5V)
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