No. Mark I/O Function
1 BCLK O N.C.
2 LRCK O N.C.
3 SRDATA O N.C.
4 DVDD1 I Power supply input (for digital
circuit)
5 DVSS1 I GND (for digital circuit)
6 TX O Digital audio interface signal
output (Latches data at first
transition)
7 MCLK I Microprocessor command
clock signal input
8 MDATA I Microprocessor command data
signal input
9 MLD I Microprocessor command load
signal input
10 SENSE O Sense signal output (OFT,
FESL,MAGEND,NAJEND,POSAD,
SFG) (Not used, open)
11 /FLOCK O Focus servo feeding signal
output (“L” : Feed)
12 /TLOCK O Tracking servo feeding signal
output (“L” : Feed)
13 BLKCK O Sub-code block clock signal
output (BLKCKf = 75Hz during
normal playback)
14 SQCK I External clock signal input for
sub-code Q resistor
15 SUBQ O Sub-code Q code output
16 DMUTE I Muting input (“H” : mute)
17 STAT O Status signal output
(CRC,CUE,CLVS,TTSTVP,FCLV,
SQCK)
18 /RST I Reset signal input
19 SMCK O 1/2-diveded clock signal of
crystal osscillating at MSEL =
“H” (fSMCK = 8.4672 MHz) 1/4-
divided clock signal of crystal
oscillating at MSEL = “L”
(fSMCK = 4.2336 MHz)
20 CSEL I Frequency Selection Terminal
H = 33.8688 MHz ; L = 16.9344
MHz
21 TRV O N.C
22 TVD O Traverse drive output
23 PC O Spindle motor ON output ("L" :
ON)
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