24
AVD-S50/S50ES
• DVD BOARD IC401 CXD3068Q (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No.
Pin Name
I/O
Pin Description
1
DVDD0
—
Power supply terminal (+3.3 V) (digital system)
2
XRST
I
Reset signal input from the mechanism controller “L”: reset
3
MUTE
I
Muting on/off control signal input from the mechanism controller “H”: muting on
4
DATA
I
Serial data input from the mechanism controller
5
XLAT
I
Serial data latch pulse signal input from the mechanism controller
6
CLOK
I
Serial data transfer clock signal input from the mechanism controller
7
SENS
O
Internal status (SENSE) signal output to the mechanism controller
8
SCLK
I
SENSE serial data reading clock signal input from the mechanism controller
9
ATSK
I/O
Input/output terminal for anti-shock Not used.
10
WFCK
O
Write frame clock signal output to the DVD decoder
11
RFCK
O
RFCK signal output terminal Not used. (Open)
12
XPCK
O
XPCK signal output terminal Not used. (Open)
13
GFS
O
Guard frame sync signal output to the mechanism controller
14
C2PO
O
C2 pointer signal output to the DVD decoder
15
SCOR
O
Subcode sync (S0+S1) detection signal output to the DVD decoder and mechanism
controller
16
C4M
O
4.2336 MHz clock signal output terminal Not used. (Open)
17
WDCK
O
Guard subcode sync (S0+S1) detection signal output to the DVD decoder
18
DVSS0
—
Ground terminal (digital system)
19
COUT
O
Numbers of track counted signal output to the mechanism controller
20
MIRR
O
Mirror signal output to the mechanism controller
21
DFCT
I/O
Defect signal input/output terminal Not used.
22
FOK
O
Focus OK signal output to the mechanism controller
23
PWMI
I
Spindle motor external control signal input terminal Not used. (Fixed at “L” in this set.)
24
LOCK
O
GFS is sampled by 460 Hz “H” output when GFS is “H”.
25
MDP
O
Spindle motor servo drive signal output to the DVD decoder
26
SSTP
I
Detection signal input from limit in switch
The optical pick-up is inner position when “H”
27
FSTO
O
2/3 divider output terminal Not used. (Open)
28
DVDD1
—
Power supply terminal (+3.3 V) (digital system)
29
SFDR
O
Sled servo drive PWM signal (+) output
30
SRDR
O
Sled servo drive PWM signal (–) output
31
TFDR
O
Tracking servo drive PWM signal (+) output
32
TRDR
O
Tracking servo drive PWM signal (–) output
33
FFDR
O
Focus servo drive PWM signal (+) output
34
FRDR
O
Focus servo drive PWM signal (–) output
35
DVSS1
—
Ground terminal (digital system)
36
TEST
I
Input terminal for the test
37
TES1
I
Input terminal for the test
38
VC
I
Middle point voltage (+1.65 V) input terminal
39
FE
I
Focus error signal input from the DVD/CD RF amplifier
40
SE
I
Sled error signal input from the DVD/CD RF amplifier
41
TE
I
Tracking error signal input from the DVD/CD RF amplifier
42
CE
I
Middle point servo analog signal input
43
RFDC
I
RF signal input from the DVD/CD RF amplifier
44
ADIO
O
Output terminal for the test Not used. (Open)
45
AVSS0
—
Ground terminal (analog system)
46
IGEN
I
Stabilized current input for operational amplifiers
Summary of Contents for AVD-S50
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