Ic Pinfunctions - Sony CDP-XE530 Service Manual

CDP-XE530

6-10. IC PINFUNCTIONS

• IC101 DIGITAL SIGNAL PROCESSOR (CXD2585Q)(BD board)
Pin No. Pin Name I/O
1 DVDD – Digital power supply
2 XRST I System reset "L" : reset
3 MUTE I Muting input "H" : mute
4 DATA I Serial data input, supplied from CPU
5 XLAT I Latch input, supplied from CPU
6 CLOK I Serial data transfer clock input, supplied from CPU
7 SENS O SENS signal output to CPU
8 SCLK I SENS serial data read-out clock input
9 ATSK I Input pin for anti-shock (Connected to ground)
10 WFCK O WFCK output (Not used)
11 XUGF O Not used
12 XPCK O Not used
13 GFS O Not used
14 C2PO O Not used
15 SCOR O Sub-code sync output
16 CM4 O 4.2336 MHz output (Not used)
17 WDCK O Word clock output (ƒ = 2Fs)
18 DVSS – Digital ground
19 COUT I/O Numbers of track counted signal input/output (Not used)
20 MIRR I/O Mirror signal input/output (Not used)
21 DFCT I/O Defect signal input/output (Not used)
22 FOK I/O Focus OK input/output (Not used)
23 PWMI I Spindle motor external control input (Connected to ground)
24 LOCK I/O GFS is sampled by 460 Hz. H when GFS is H (Not used)
25 MDP O Output to control spindle motor servo
26 SSTP I Input signal to detect disc inner most track
27 FSTO O 2/3 divider output of pin 71 (Not used)
28 DVDD1 – Digital power supply
29 SFDR O Sled drive output
30 SRDR O Sled drive output
31 TFDR O Tracking drive output
32 TRDR O Tracking drive output
33 FFDR O Focus drive output
34 FRDR O Focus drive output
35 DVSS1 – Digital ground
36 TEST I TEST pin connected normally to ground
37 TES1 I TEST pin connected normally to ground
38 VC I Center voltage input pin
39 FE I Focus error signal input
40 SE I Sled error signal input
• Abbreviation
GFS : Guarded Frame Sync
Function
— 27 —
Pin No. Pin Name I/O
41 TE I Tracking error signal input
42 CE I Center servo analog input
43 RFDC I RF signal input
44 ADIO O Test pin (Not used)
45 AVSS0 – Analog ground
46 IGEN I Stabilized current input for operational amplifiers
47 AVDD0 – Analog power supply
48 ASYO O EFM full swing output
49 ASYI I Asymmetry comparate voltage input
50 RFAC I EFM signal input
51 AVSS1 – Analog ground
52 CLTV I Control voltage input for master VCO1
53 FILO O Filter output for master PLL
54 FILI I Filter input for master PLL
55 PCO O Charge-pump output for master PLL
56 AVDD1 – Analog power supply
57 BIAS I Asymmetry circuit constant current input
58 VCTL I VCO2 control voltage input for wide band EFM PLL (Connected to VDD)
59 V16M I/O VCO2 oscillator input/output for wide band EFM PLL (Not used)
60 VPCO O Charge-pump output for wide band EFM PLL (Not used)
61 DVDD2 – Digital power supply
62 ASYE I Asymmetry circuit ON/OFF input "L" OFF, "H" : ON (Connected to VDD)
63 MD2 I Digital-out ON/OFF control input (Connected to VDD)
64 DOUT O Digital-out output pin
65 LRCK O D/A interface LR clock output (ƒ = Fs)
66 PCMD O D/A interface serial data output
67 BCLK O D/A interface bit clock output
68 EMPH O Playback disc output in emphasis mode (Not used)
69 XTSL I X'tal selection input (Connected to ground)
70 DVSS2 – Digital ground
71 XTAI I X'tal oscillator circuit input
72 XTAO O X'tal oscillator circuit output (Not used)
73 SOUT O Serial data output in servo block (Not used)
74 SOCK O Serial data read clock output in servo block (Not used)
75 XOLT O Serial data latch output in servo block (Not used)
76 SQSO O Sub-Q 80-bit and PCM peak level data output (CD text data output)
77 SQCK I Clock input for SQSO read-out
78 SCSY I Connected to ground
79 SBSO O Sub-P through Sub-W serial output (Not used)
80 EXCK I Clock input for SBSO read-out (Connected to ground)
• Abbreviation
EFM : Eight to Fourteen Modulation
PLL : Phase Locked Loop
Function
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