Ic Pin Function Description - Sony HCD-GX250 Servce Manual

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5-17. IC PIN FUNCTION DESCRIPTION

• IC101 CXD3058AR (RF AMP) (BD80A BOARD)
Pin No Pin Name
1 MIRR
2 DFCT
3 FOK
4 VSS
5 LOCK
6 MDP
7 SSTP
8 IOVSS1
9 SFDR
10 SRDR
11 TFDR
12 TRDR
13 FFDR
14 FRDR
15 IOVDD1
16 AVDD0
17 AVSS0
18 E
19 F
20 TEI
TE
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21 TEO
22 FEI
23 FEO
24 VC
25 A
26 B
27 C
28 D
29 AVDD4
30 RFDCO
31 PDSENS
32 AC_SUM
33 EQ_IN
34 LD
35 PD
36 RFC
37 AVSS4
38 RFACO
39 RFACI
40 AVDD3
41 BIAS
42 ASYI
43 ASYO
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44 VPCO
45 VCTL
46 AVSS3
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47 CLTV
48 FILO
49 FILI
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I/O
I/O Mirror signal input/output (Not used)
I/O Defect signal input/output (Not used)
I/O Focus OK signal input/output (Not used)
— Internal digital ground
GFS is sampled at 460Hz; when GFS is high , this pin outputs a high signal
I/O
If GFS is low eight consecutive
O Spindle motor servo control output
I Disk innermost detection signal input
— I/O digital ground
O Sled drive output
O Sled drive output
O Tracking drive output
O Tracking drive output
O Focus drive output
O Focus drive output
— I/O digital power supply
— Analog power supply
— Analog ground
I E signal input
I F signal input
I Tracking error signal input to DSSP block
O Tracking error signal output from RF amplifier block
I Focus error signal input to DSSP block
O Focus error signal output from RF amplifier block
I/O Center voltage output from RF amplifier block
I A signal input
I B signal input
I C signal input
I D signal input
— Analog power supply
O RFDC signal output (Not used)
I Reference voltage pin for PD
O RFAC summing amplifier output
I Equalizer circuit input
O APC amplifier output
I APC amplifier input
I Equalizer cut-off frequency adjustment pin
— Analog ground
O RFAC signal output
I RFAC signal input or EFM signal input
— Analog power supply
I Asymmetry circuit constant current input
I Asymmetry comparator voltage input
O EFM full-swing output (Low = VSS, High = VDD)
O Wide-band EFM PLL charge pump output
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I Wide-band EFM PLL VCO2 control voltage input
— Analog ground
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I Multiplier VCO1 control voltage input
O Master PLL (slave = digital PLL) filter output
I Master PLL filter input
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Description
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