Read Sony CMT-CP555 / HCD-CP555 / HCD-NXM1 / MHC-NXM1 Service Manual online
42
HCD-CP555/NXM1
Pin No.
Pin Name
I/O
Description
49
AVSS3
—
Analog ground
50
CLTV
I
Multiplier VCO1 control voltage input
51
FILO
O
Master PLL (slave = digital PLL) filter output
52
FILI
I
Master PLL filter input
53
PCO
O
Master PLL charge pump output
54
AVDD5
—
Analog power supply
55
DDVROUT
O
DC/DC converter output
56
DDVRSEN
I
DC/DC converter output voltage monitor input
57
AVSS5
—
Analog ground
58
DDCR
I
DC/DC converter reset input
59
NC
—
Not used
60
BCKI
I
D/A interface bit clock input
61
PCMDI
I
D/A interface serial data input (2’s COMP, MSB first)
62
LRCKl
I
D/A interface LR clock input
63
LRCK
O
D/A interface LR clock output f = Fs
64
VSS
—
Internal digital ground
65
PCMD
O
D/A interface serial data output (2’s COMP, MSB first)
66
BCK
O
D/A interface bit clock output
67
VDD
—
Internal digital power supply
68
EMPH
O
High when the playback disc has emphasis, low it has not
69
EMPHI
I
High when de-emphasis is ON, low when input OFF
70
IOVDD2
—
I/O digital power supply
71
DOUT
O
Digital Out output
72
TEST
I
Test pin Normally ground
73
TES1
I
Test pin Normally ground
74
IOVss2
—
I/O digital ground
75
NC
—
Not used
76
XVSS
—
Master clock ground
77
XTAO
O
Crystal oscillation circuit output
78
XTAI
I
Crystal oscillation circuit input
79
XVDD
—
Master clock power supply
80
AVDD1
—
Analog power supply
81
AOUT1
O
Lch analog output
82
VREFL
O
Lch reference voltage
83
AVSS1
—
Analog ground
84
AVSS2
—
Analog ground
85
VREFR
O
Rch reference voltage
86
AOUT2
O
Rch analog output
87
AVDD2
—
Analog power supply
88
NC
—
Not used
89
IOVDD0
—
I/O digital power supply
90
RMUT
O
Rch “0” detection flag (Not used)
91
LMUT
O
Lch “0” detection flag (Not used)
92
NC
—
Not used
93
XTSL
I
Crystal selection input (Not used)
94
IOVSS0
—
I/O digital ground
95
XTACN
I
Oscillation circuit control
Self-oscillation when high, oscillation stop when low
96
SQSO
O
Subcode Q 80-bit and PCM peak and level data output (Not used)
97
SQCK
I
SQSO readout clock input
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