50
MZ-R909
Pin No. Pin Name I/O Description
49 VC I Middle point voltage (+1.2V) input terminal
50 ADIO O Monitor output terminal of A/D converter input signal Not used (open)
51 ADRT I A/D converter the upper limit voltage input terminal (fixed at “H” in this set)
52 AVD2 —Power supply terminal (for the analog) (+2.4V)
53 AVS2 —Ground terminal (for the analog)
54 ADRB IA/D converter the lower limit voltage input (fixed at “L” in this set)
55 SE ISled error signal input terminal Not used ( fixed at “L”)
56 TE ITracking error signal input from RF amp (IC501)
57 DCHG —Connecting analog power supply of the low impedance (fixed at “H” in this set)
58 APC IError signal input for the laser automatic power control Not used (fixed at “H”)
59 DSPVDD0 —Power supply terminal (for DSP block) (+1.5V)
60 DSPVSS0 —Ground terminal (for DSP block)
61 XTSL IInput terminal for the frequency set up of the system clock “L”: 45.1584MHz,
“H”: 22.5792MHz (fixed at “L” in this set)
62 DIN1 IInput terminal of the record system digital audio signal
63 DOUT OOutput terminal of the playback system digital audio signal Not used (open)
64 DAPWMLP O D/A converter PWM output terminal (L-CH right phase) Not used (open)
65 DAPWMLN OD/A converter PWM output terminal (L-CH reverse phase) Not used (open)
66 DAPWMRP O D/A converter PWM output terminal (R-CH right phase) Not used (open)
67 DADT O Audio data output to the external A/D converter Not used (open)
68 ADDT IData input from the external A/D converter (IC301)
69 LRCK O L/R sampling block signal (44.1KHz) output to the external A/D converter (IC301)
70 XBCK O Bit clock signal (2.8224MHz) output to the external A/D converter (IC301)
71 FS256 O11.2896MHz clock signal output to the external A/D converter (IC301)
72 MVCI IClock signal input from the external VCO Not used (fixed at “L”)
73 DSPVDD1 —Power supply terminal (for DSP block) (+1.5V)
74 ADFG IADIP duplex FM signal (20.05±1kHz) input from RF amp (IC501)
75 F0CNT OFilter cut off control signal output terminal Not used (open)
76 DIFVDD0 —Power supply terminal (for DSP I/F) (+2.3V)
77 DIFVSS0 —Ground terminal (for DSP I/F)
78 APCREF O Reference PWM signal output for the laser automatic power control to RF amp (IC501)
79 LDDR O PWM signal output for the laser automatic power control Not used (open)
80 TRDR O Tracking servo drive PWM signal output (–) to the motor driver (IC551)
81 TFDR O Tracking servo drive PWM signal output (+) to the motor driver (IC551)
82 FFDR O Focus servo drive PWM signal output (+) to the motor driver (IC551)
83 FRDR O Focus servo drive PWM signal output (–) to the motor driver (IC551)
84 MCUVDD1 —Power supply terminal (for the microcomputer block) (+1.5V)
85 FGIN I FG signal input terminal for the spindle CAV servo Not used (open)
86 FS4 O 176.4kHz clock signal output to the power control (IC601, IC901)
87 SPDU O Spindle motor drive control signal output (U) to the motor driver (IC551)
88 SPFD/SPVS/
PWM3 O Spindle servo drive PWM signal output to the motor driver (IC551)
89 SPDV O Spindle motor drive control signal output (V) to the motor driver (IC551)
90 SPDW O Spindle motor drive control signal output (W) to the motor driver (IC551)
91 DSPVDD2 —Power supply terminal (for DSP block) (+1.5V)
92 DSPVSS1 —Ground terminal (for DSP block)