Pin No. Mark I/O Function
53 PCK O PLL Extraction Clock
Output (Not Used,
Open)
(FEPC= 4.3218 MHz
during Normal
Playback)
54 VCOF2 I/O VCO loop filter for
33.8688 MHz
Conversion Terminal
for 16.9344 MHz Crystal
mode, Must use other
circuit
55 SUBC O Sub-Code Serial Data
Output (Not Used,
Open)
56 SBCK I Clock Input for Sub-
Code Serial Data
57 Vs. I GND
58 X1 IN I Crystal Oscillating
Circuit Input
(f= 16.9344 MHz)
59 X2 OUT O Crystal Oscillating
Circuit Input
(f= 16.9344 MHz)
60 VDD I Power Supply Input
(For Oscillating Circuit)
61 BYTCK O Byte Clock Output (Not
Used, Open)
62 /CLDCK O Sub-Code Frame Clock
Signal Output
(fleck= 7.35 kHz During
Normal Playback)
63 FCLK O Crystal Frame Clock
Signal Output)
(fleck= 7.35 kHz)
64 IPFLAG O Interpolation Flag
Output
(“H”: Interpolation) (Not
Used, Open)
65 FLAG O Flag Output (Not Used,
Open)
66 CLVS O Spindle Servo Phase
Synchronizing Signal
Output
(“H”: CLV, “L”: Rough
Servo) (Not used, Open)
51