49
HCD-DZ20
• IC Pin Function Description
MAIN BOARD IC1101 CXD9849R
(CD/DVD RF AMP, FOCUS/TRACKING ERROR AMP, DVD SYSTEM PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No. Pin Name I/O Description
1AGND — Ground terminal
2DVDA I AC coupled input path A
3DVDB I AC coupled input path B
4DVDC I AC coupled input path C
5DVDD I AC coupled input path D
6DVDRFIP I AC coupled DVD RF signal input RFIP
7DVDRFIN I AC coupled DVD RF signal input RFIN (not used (Open))
8NAIDC coupled main-beam RF signal input A
9NBIDC coupled main-beam RF signal input B
10 MC I DC coupled main-beam RF signal input C
11 MD I DC coupled main-beam RF signal input D
12 SA I DC coupled sub-beam RF signal input A (not used (Open))
13 SB I DC coupled sub-beam RF signal input B (not used (Open))
14 SC I DC coupled sub-beam RF signal input C (not used (Open))
15 SD I DC coupled sub-beam RF signal input D (not used (Open))
16 CDFON I CD focusing error negative input (not used (Open))
17 CDFOP I CD focusing error positive input (not used (Open))
18 TNI I 3 beam satellite PD signal negative input
19 TPI I 3 beam satellite PD signal positive input
20 MDI1 I Laser power PD monitor input
21 MDI2 I Laser power PD monitor input
22 LDO2 O Laser drive output (for DVD)
23 LDO1 O Laser drive output (for CD)
24 SVDD3 — Power Supply (+3.3V)
25 CSD O Central servo, Positive main beam summing output (not used (Open))
26 RFLVL O RFRP low pass, or Positive main beam summing output (not used (Open))
27 SGND — Ground terminal
28 V2REFO O Reference voltage 2.8V
29 V2O O Reference voltage 2.0V
30 VREFO O Reference voltage 1.4V
31 FEO O Focus error monitor output (not used (Open))
32 TEO O Tracking error monitor output (not used (Open))
33 TEZISLY O TE Slicing Level (not used)
34 OPOUT O Op amp output (not used (Open))
35 OPIN I Op amp negative input (not used (Open))
36 OPIN I Op amp positive input (not used (Open))
37 DMO O Disk motor control output. PWM output
38 FMO O Feed motor control. PWM output
39 TROPENPWM O Tray PWM output/Tray open output.
40 IOPMON O IOP monitor input
41 TRO O Tracking servo output
42 FOO O Focus servo output
43 DVSS — Ground terminal
44 NC I USB port DPLUS analog pin (not used (Open))
45 NC I USB port DMINUS analog pin (not used (Open))
46 DVDD3 — Power Supply (+3.3V)
47 SPFG I Spindle motor HALL sensor input
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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