Sony CDP-X5000 Service Manual page 13

5-2. IC PIN FUNCTIONS
• IC101 FOCUS/TRACKING/SLED SERVO/EFM COMPARATOR (CXD2515AQ)
Pin No. Pin Name
1 SRON
2 SRDR
3 SFON
4 TFDR
5 TRON
6 TRDR
7 TFON
8 FFDR
9 FRON
10 FRDR
11 FFON
12 VCOO
13 VCOI
14 TEST
15 DVss
16 TES2
17 TES3
18 PDO
19 VPCO
20 VCKI
21 AVD2
22 IGEN
23 AVS2
24 ADII
25 ADIO
26 RFDC
27 TE
28 SE
29 FE
30 VC
31 FILO
32 FILI
33 PCO
34 CLTV
35 AVS1
36 RFAC
37 BIAS
38 ASYI
39 ASYO
40 AVD1
• Abbreviation
EFM: Eight to Fourteen Modulation
PLL: Phase Locked Loop
I/O
Sled drive output (Open)
O
Sled drive output
O
Sled drive output (Open)
O
Tracking drive output
O
Tracking drive output (Open)
O
Tracking drive output
O
Tracking drive output (Not used)
O
Focus drive output
O
Focus drive output (Open)
O
Focus drive output
O
Focus drive output (Open)
O
VCO output for analog EFM PLL (Open)
O
VCO output for analog EFM PLL (Connected to Ground)
I
TEST pin connected normally to Ground (Connected to Ground)
I
Digital Ground
–
TEST pin connected normally to Ground
I
TEST pin connected normally to Ground
I
Charge-pump output for analog EFM PLL (Open)
O
Charge-pump output for variable pitch PLL (Open)
O
Clock input from variable pitch external VCO (Connected to Ground)
I
Analog power supply
–
Power supply pin for operational amplifiers
I
Analog Ground
–
A/D converter input pin
I
OP amplifier output pin
O
RF signal input
I
Tracking error signal input
I
Sled error signal input
I
Focus error signal input
I
Center voltage input pin
I
Filter output for master PLL
O
Filter input for master PLL
I
Charge-pump output for master PLL
O
Control voltage input for master VCO
I
Analog Ground
–
EFM signal input
I
Asymmetry circuit constant current input
I
Asymmetry comparate voltage input
I
EFM full swing output
O
Analog power supply
–
— 13 —
Function