Sony HCD-GNX80 - IC Pin Function Description

52
HCD-GNX80
7-25. IC Pin Function Descriptions
• IC101 CXD3059AR (RF AMP) (CD BOARD)
Pin No. Pin Name I/O Description
1MIRR I/O Not used (Open)
2 DFCT I/O Not used (Open)
3 FOK I/O Not used (Open)
4 VSS — Ground
5 LOCK I/O Not used (Open)
6 MDP O Spindle motor servo control output
7 SSTP I Disk innermost detection signal input
8 IOVSS1 — Ground
9 SFDR O Sled drive signal output
10 SRDR O Sled drive signal output
11 TFDR O Tracking drive signal output
12 TRDR O Tracking drive signal output
13 FFDR O Focus drive signal output
14 FRDR O Focus drive signal output
15 IOVDD1 — Power supply (+3.3V)
16 AVDD0 — Power supply (+3.3V)
17 AVSS0 — Ground
18 NC — Not used (Open)
19 E I E signal input
20 F I F signal input
21 TEI I Tracking error signal input
22 TEO O Tracking error signal output
23 FEI I Focus error signal input
24 FEO O Focus error signal output
25 VC I/O Center voltage output from RF amplifier block
26 A I A signal input
27 B I B signal input
28 C I C signal input
29 D I D signal input
30 NC — Not used (Open)
31 AVDD4 — Power supply (+3.3V)
32 RFDCO O RFDC signal output (Not used)
33 PDSENS I Reference voltage pin
34 AC_SUM O RFAC summing amplifier output
35 EG_IN I Equalizer circuit input
36 LD O APC LD drive signal output
37 PD I APC PD signal input
38 NC — Not used (Open)
39 RFC I Equalizer cut-off frequency adjustment pin
40 AVSS4 — Ground
41 RFACO O RFAC signal output
42 RFACI I RFAC signal input or EFM signal input
43 AVDD3 — Power supply (+3.3V)
44 BIAS I Asymmetry circuit constant current input
45 ASYI I Asymmetry comparator voltage input
46 ASYO O EFM full-swing output
47 VPCO O Not used (Open)
48 VCTL I Wide-band EFM PLL VCO2 control voltage input