CDC-X237/X437
Pin No.Pin NameI/OPin Description
42RMUTEORight channel mute signal output General-purpose input/output pin 8
43XVDDNCrystal oscillator power supply pin
44XOUTO
Connections for a 16.9344 MHz crystal oscillator element pin
45XINI
46XVSSNCrystal oscillator ground pin Must be connected to 0 V.
47SBSYOSubcode clock synchronization signal output Not used. (Open)
48EFLGOC1, C2, signal and double error correction monitor pin Not used. (Open)
49PWOSubcode P, Q, R, S, T, U and W output Not used. (Open)
Subcode frame synchronization signal output
50SFSYO
This signal falls when the subcode are in standby stase. Not used. (Open)
Subcode readout clock input
51SBCKI
This is a schmitt input. (Must be connected to 0 V when unused.)
Output pin for the 7.35 kHz synchronization signal divided from the crystal oscillator
52FSXO
Not used. (Open)
53WRQOSubcode Q output standby output
54RWCIRead/write control signal input This is a schmitt input
55SQOUTOSubcode Q signal output
56COINICommand input pin from system control microprocessor
Input for both the command input acquisition clock and the SQOUT pin subcode
57CQCKI
readout clock input pin This is a schmitt input.
58RESIReset signal input This pin must be set low briefly after power is first applied.
59TST11OTest output pin Leave open. (Normally output a low level.) Not used. (Open)
6016MO16.9344 MHz output pin Not used. (Open)
614.2MO4.2336 MHz output pin
62TEST5ITest input pin A pull-down resister is built-in. Must be connected to 0 V.
Chip select signal input
63CSI
A pull-down resister is built-in. Must be connected to 0 V if not controlled.
64TEST1ITest input pin No pull-down resister. Must be connected to 0 V.
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