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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
I
A/D converter the lower limit voltage input (fixed at “L” in this set)
55
SE
I
Sled error signal input terminal Not used ( fixed at “L”)
56
TE
I
Tracking 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
I
Error 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
I
Input terminal for the frequency set up of the system clock “L”: 45.1584MHz,
“H”: 22.5792MHz (fixed at “L” in this set)
62
DIN1
I
Input terminal of the record system digital audio signal
63
DOUT
O
Output 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
O
D/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
I
Data 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
O
11.2896MHz clock signal output to the external A/D converter (IC301)
72
MVCI
I
Clock signal input from the external VCO Not used (fixed at “L”)
73
DSPVDD1
—
Power supply terminal (for DSP block) (+1.5V)
74
ADFG
I
ADIP duplex FM signal (20.05±1kHz) input from RF amp (IC501)
75
F0CNT
O
Filter 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)