Sony HCD-CP555, Service Manual, Page: 42 / 64

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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