Sony MDS-JE470 Service Manual - Page 54

EFM: Eight to Fourteen Modulation, Phase Locked Loop, VCO: Voltage Controlled Oscillator, Description

Get Sony MDS-JE470 - Md Player PDF manuals and user guides View all Sony MDS-JE470 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 54 highlights

MDS-JE470 Pin No. 48 49 50, 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 Pin Name D1 D0 D2, D3 MVCI ASYO ASYI AVDD BIAS RFI AVSS PCO FILI FILO CLTV PEAK BOTM ABCD FE AUX1 VC ADIO AVDD ADRT ADRB AVSS SE TE DCHG TEST4 ADFG F0CNT XLRF CKRF DTRF APCREF TEST0 TRDR I/O Description I/O I/O Data input/output for DRAM I/O I (S) Clock input from an external VCO (Fixed at "L") O Playback EFM duplex signal output I (A) Playback EFM comparator slice level input I +3V power supply (Analog) I (A) Playback EFM comparator bias current input I (A) Playback EFM RF signal input - Ground (Analog) O (3) Phase comparison output for the recording/playback EFM master PLL I (A) Filter input for the recording/playback EFM master PLL O (A) Filter output for the recording/playback EFM master PLL I (A) Internal VCO control voltage input for the recording/playback EFM master PLL I (A) Light amount signal peak hold input from the CXA2523AR I (A) Light amount signal bottom hold input from the CXA2523AR I (A) Light amount signal input from the CXA2523AR I (A) Focus error signal input from the CXA2523AR I (A) Auxiliary A/D input I (A) Middle point voltage (+1.5V) input from the CXA2523AR O (A) Monitor output of the A/D converter input signal (Not used) I +3V power supply (Analog) I (A) A/D converter operational range upper limit voltage input (Fixed at "H") I (A) A/D converter operational range lower limit voltage input (Fixed at "L") - Ground (Analog) I (A) Sled error signal input from the CXA2523AR I (A) Tracking error signal input from the CXA2523AR I (A) Connected to +3V power supply I Test input (Fixed at "H") I (S) ADIP duplex FM signal input from the CXA2523AR (22.05 ± 1 kHz) O Filter f0 control output to the CXA2523AR O Control latch output to the CXA2523AR O Control clock output to the CXA2523AR O Control data output to the CXA2523AR O Reference PWM output for the laser APC O PWM output for the laser digital APC (Not used) O Tracking servo drive PWM output (-) • Abbreviation EFM: Eight to Fourteen Modulation PLL : Phase Locked Loop VCO: Voltage Controlled Oscillator 54

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
54
MDS-JE470
Description
Pin No.
Pin Name
I/O
48
49
50, 51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
D1
D0
D2, D3
MVCI
ASYO
ASYI
AVDD
BIAS
RFI
AVSS
PCO
FILI
FILO
CLTV
PEAK
BOTM
ABCD
FE
AUX1
VC
ADIO
AVDD
ADRT
ADRB
AVSS
SE
TE
DCHG
TEST4
ADFG
F0CNT
XLRF
CKRF
DTRF
APCREF
TEST0
TRDR
Data input/output for DRAM
Clock input from an external VCO (Fixed at “L”)
Playback EFM duplex signal output
Playback EFM comparator slice level input
+3V power supply (Analog)
Playback EFM comparator bias current input
Playback EFM RF signal input
Ground (Analog)
Phase comparison output for the recording/playback EFM master PLL
Filter input for the recording/playback EFM master PLL
Filter output for the recording/playback EFM master PLL
Internal VCO control voltage input for the recording/playback EFM master PLL
Light amount signal peak hold input from the CXA2523AR
Light amount signal bottom hold input from the CXA2523AR
Light amount signal input from the CXA2523AR
Focus error signal input from the CXA2523AR
Auxiliary A/D input
Middle point voltage (+1.5V) input from the CXA2523AR
Monitor output of the A/D converter input signal (Not used)
+3V power supply (Analog)
A/D converter operational range upper limit voltage input (Fixed at “H”)
A/D converter operational range lower limit voltage input (Fixed at “L”)
Ground (Analog)
Sled error signal input from the CXA2523AR
Tracking error signal input from the CXA2523AR
Connected to +3V power supply
Test input (Fixed at “H”)
ADIP duplex FM signal input from the CXA2523AR (22.05
±
1 kHz)
Filter f
0
control output to the CXA2523AR
Control latch output to the CXA2523AR
Control clock output to the CXA2523AR
Control data output to the CXA2523AR
Reference PWM output for the laser APC
PWM output for the laser digital APC (Not used)
Tracking servo drive PWM output (–)
I/O
I/O
I/O
I (S)
O
I (A)
I
I (A)
I (A)
—
O (3)
I (A)
O (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
O (A)
I
I (A)
I (A)
—
I (A)
I (A)
I (A)
I
I (S)
O
O
O
O
O
O
O
• Abbreviation
EFM: Eight to Fourteen Modulation
PLL :
Phase Locked Loop
VCO: Voltage Controlled Oscillator