Sony HCD-RG490 Service Manual page 67

Pin No.
Pin Name
46
FRDR
47
IOVDD1
48
AVDD0
49
AVSS0
50
E
51
F
52 TEI
53 TEO
54 FEI
55 FEO
56 VC
57
A
58
B
59
C
60 D
61
AVDD4
62
RFDCO
63
PDSENS
64 AC_SUM
65
EQ_IN
66 LD
67 PD
68
RFC
69 AVSS4
70
RFACO
71
RFACI
72
AVDD3
73 BIAS
74 ASYI
75 ASYO
76
VPCO
77 VCTL
78
AVSS3
79
CLTV
80
FILO
81 FILI
82
PCO
83
SVSS
84
SVDD
85 SSTB-MP3
86
VDD
87
VSS
88 TEST1
89 DATA
90
CLK2
91
SVSS
I/O
O Focus servo drive signal (-) output terminal
- Power supply terminal (+3.3V)
- Power supply terminal (+3.3V)
- Ground terminal
I E signal input from the optical pick-up block
I F signal input from the optical pick-up block
I
Tracking error signal input terminal
O
Tracking error signal output terminal
I
Focus error signal input terminal
O
Focus error signal output terminal
O Middle point voltage output terminal
I A signal input from the optical pick-up block
I B signal input from the optical pick-up block
I C signal input from the optical pick-up block
I D signal input from the optical pick-up block
- Power supply terminal (+3.3V)
O RFDC signal output terminal Not used
I Reference voltage input terminal for PD
O RFAC summing amplifier signal output terminal
I RF equalizer circuit input terminal
Laser diode on/off control signal output to the automatic power control circuit
O
"H": laser diode on
I
Light amount monitor input from the laser diode of optical pick-up block
I
Equalizer cut off frequency adjustment terminal
- Ground terminal
O EFM signal output terminal
I EFM signal input terminal
- Power supply terminal (+3.3V)
I Asymmetry circuit constant current input terminal
I
Playback EFM asymmetry comparator voltage input terminal
O
Playback EFM full-swing output terminal
O Charge pump output terminal for broad-band EFM PLL
I VCO2 control voltage input terminal for broad-band EFM PLL
- Ground terminal
I VCO1 control voltage input terminal for multiplier
O Filter output terminal for master PLL
I Filter input terminal for master PLL
O Charge pump output terminal for master PLL
- Ground terminal
- Power supply terminal (+1.8V)
I MP3 standby on/off control signal input terminal "L": standby Not used
- Power supply terminal (+1.8V)
- Ground terminal
I
Input terminal for the test Normally: fixed at "L"
I CD serial data input from the system controller
I
MP3 serial data transfer clock signal input from the system controller
- Ground terminal
HCD-RG490/RG590
Description
67