51
HCD-DP700
6-29. IC PIN FUNCTIONS
1 SOSQ O Sub-Q serial output.
2 SQCK I Clock input for SQSO read-out
3 XRST I System reset.
4 SYSM I Muting input.
5 DATA I Serial date input,supplied from CPU.
6 XLAT I Latch input,supplied from CPU.
7 CLOK I Serial date transfer clock input,supplied from CPU.
8 SENS O SENS output.
9 SCLK I SENS serial data read-out clock.
10 VDD — Power supply.
11 ATSK I/O Input pin for anti-shock (Ground)
12 SPOA I Ground.
13 SPOB I Ground.
14 XLON O Not used.
15 WFON O Not used.
16 XUGF O Not used.
17 XPCK O Not used.
18 GFS O Not used.
19 2SPO O Not used.
20 SCOR O Sub-code sync output.
21 COUT I/O Not used.
22 MIRR I/O Not used.
23 DFCT I/O Not used.
24 FOK I/O Not used.
25 LOCK I/O Not used.
26 MDP O Output to control spindle motor servo.
27 SSTP I Input signal to detect disc inner most trak.
28 SFDR O Sled drive output.
29 SRDR O Sled drive output.
30 TFDR O Tracking drive output.
31 TRDR O Tracking drive output.
32 FFDR O Focus drive output.
33 FRDR O Focus drive output.
34 VSS — Ground.
35 TEST I TEST pin connected normally ground.
36 TES1 I TEST pin connected normally ground.
37 XTSL I X’tal selection circuit input.
38 VC I Center voltage input.
39 FE I FOCUS error signal input.
40 SE I Sled error signal input.
41 TE I Tracking error signal input.
42 CE I Center servo analog input.
43 RFDC I RF signal input.
44 ADIO O Not used.
45 AVSS0 — Analog ground.
46 IGEN I Power supply pin operational amplifiers.
47 AVDDO — Analog power supply.
48 ASYO O EFM full swing output.
49 ASYI I Asymmetry comparator voltage input.
50 BIAS I Asymmetry circuit constant current input.
51 RFAC I EFM signal input.
52 AVSS3 — Analog ground.
FunctionPin NamePin No. I/O
• IC101 DIGITAL SIGNAL PROCESSOR (CXD3017Q) (BD Board)