55
HCD-VM330AV
7-31. IC PIN FUNCTION DESCRIPTION
• BD BOARD IC101 CXD3068Q (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No. Pin Name I/O Description
1 DVDD0 —
Power supply terminal (+3.3V) (digital system)
2 XRST I
Reset signal input from the video CD controller (IC502) “L”: reset
3 MUTING I
Muting on/off control signal input from the video CD controller (IC502) “H”: muting on
4 DATA I
Serial data input from the video CD controller (IC502)
5 XLAT I
Serial data latch pulse signal input from the video CD controller (IC502)
6 CLOK I
Serial data transfer clock signal input from the video CD controller (IC502)
7 SENS O
Internal status (SENSE) signal output to the video CD controller (IC502)
8 SCLK I
SENSE serial data reading clock signal input from the video CD controller (IC502)
9 ATSK I/O
Input/output terminal for anti-shock Not used (pull down)
10 WFCK O
Write frame clock signal output terminal Not used (open)
11 XUGF 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 terminal Not used (open)
14 C2PO O
C2 pointer signal output to the CL680T (IC505)
15 SCOR O
Subcode sync (S0+S1) detection signal output to the video CD controller (IC502)
16 C4M O
4.2336 MHz clock signal output terminal Not used (open)
17 WDCK O
Guard subcode sync (S0+S1) detection signal output terminal Not used (open)
18 DVSS —
Ground terminal (digital system)
19 COUT O
Numbers of track counted signal output terminal Not used (open)
20 MIRR O
Mirror signal output terminal Not used (open)
21 DFCT I/O
Defect signal input/output terminal Not used (open)
22 FOK O
Focus OK signal output terminal Not used (open)
23 PWMI I
Spindle motor external control signal input terminal Not used (fixed at “L”)
24 LOCK O
GFS is sampled by 460 Hz “H” output when GFS is “H”
25 MDP O
Spindle motor (M101) servo drive signal output to the AN41020A (IC102)
26 SSTP I
Detection signal input from limit in switch of the optical pick-up block
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 (+3.3V) (digital system)
29 SFDR O
Sled servo drive PWM signal (+) output to the AN41020A (IC102)
30 SRDR O
Sled servo drive PWM signal (–) output to the AN41020A (IC102)
31 TFDR O
Tracking servo drive PWM signal (+) output to the AN41020A (IC102)
32 TRDR O
Tracking servo drive PWM signal (–) output to the AN41020A (IC102)
33 FFDR O
Focus servo drive PWM signal (+) output to the AN41020A (IC102)
34 FRDR O
Focus servo drive PWM signal (–) output to the AN41020A (IC102)
35 DVSS1 —
Ground terminal (digital system)
36 TEST I
Input terminal for the test (fixed at “L”)
37 TES1 I
Input terminal for the test (fixed at “L”)
38 VC I
Middle point voltage (+1.65V) input from the CXA2581N (IC103)
39 FE I
Focus error signal input from the CXA2581N (IC103)
40 SE I
Sled error signal input from the CXA2581N (IC103)
41 TE I
Tracking error signal input from the CXA2581N (IC103)
42 CE I
Middle point servo analog signal input from the CXA2581N (IC103)
43 RFDC I
RF signal input from the CXA2581N (IC103)
44 ADIO O
Output terminal for the test Not used (open)
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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