23
CDP-XE270/XE370
Pin No.
Pin Name
I/O
Description
44
ADIO
O
Output terminal for the test Not used (open)
45
AVSS0
—
Ground terminal (digital system)
46
IGEN
I
Stabilized current input for operational amplifiers
47
AVDD0
—
Power supply terminal (+5V) (digital system)
48
ASYO
O
EFM full-swing output terminal
49
ASYI
I
Asymmetry comparator voltage input terminal
50
BIAS
I
Asymmetry circuit constant current input terminal
51
RFAC
I
EFM signal input from the CXA2581N (IC131)
52
AVSS3
—
Ground terminal (digital system)
53
CLTV
I
Internal VCO control voltage input
54
FILO
O
Filter output for master PLL
55
FILI
I
Filter input for master PLL
56
PCO
O
Charge pump output for master PLL
57
AVDD3
—
Power supply terminal (+5V) (digital system)
58
VSS
—
Ground terminal (digital system)
59
VDD
—
Power supply terminal (+5V) (digital system)
60
DOUT
O
Digital audio signal output to the DIGITAL OUT OPTICAL (IC651)
61
LRCK
O
D/A interface L/R sampling clock signal (44.1 kHz) output terminal Not used (open)
62
PCMD
O
D/A interface serial data output terminal Not used (open)
63
BCK
O
D/A interface bit clock signal (2.8224 MHz) output terminal Not used (open)
64
EMPH
O
“H” is output when playback disc is emphasis on
“L” is output when playback disc is emphasis off Not used (open)
65
XVDD
—
Power supply terminal (+5V) (crystal oscillator system)
66
XTAI
I
System clock input terminal (16.9344 MHz)
67
XTAO
O
System clock output terminal (16.9344 MHz)
68
XVSS
—
Ground terminal (crystal oscillator system)
69
AVDD1
—
Power supply terminal (+5V) (analog system)
70
AOUT1
O
L-ch analog audio signal output
71
AIN1
I
L-ch operational amplifiers input
72
LOUT1
O
L-ch line output
73
AVSS1
—
Ground terminal (analog system)
74
AVSS2
—
Ground terminal (analog system)
75
LOUT2
O
R-ch line output
76
AIN2
I
R-ch operational amplifiers input
77
AOUT2
O
R-ch analog audio signal output
78
AVDD2
—
Power supply terminal (+5V) (analog system)
79
RMUT
O
R-ch line muting on/off control signal output “L”: line muting on
80
LMUT
O
L-ch line muting on/off control signal output “L”: line muting on
