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3.1 Inputs

Digitized CCD Data is brought into the module via sixteen 16-way high-density pin connectors. A Circuit Assembly connector part number CA-16NFS-12G, or Amphenol connector part number 845-C016S-ALA, will mate with the input connectors.

The pinouts for each channel are shown in Table 1.

ADn = A/D digitized data Bit n, Differential ECL, True signal.
!ADn = A/D digitized data Bit n, Differential ECL, Inverse signal.
Bit 7 is MSB, Bit 0 is LSB.

The input signals are differential terminated with 100 nominal at the Data Compactor. They must be fitted with pulldown resistors at the source.

Input connectors on the Data Compactor are numbered consecutively from zero to fifteen from top to bottom (Channel 0 to channel 15). This channel number corresponds with the channel ID encoded into the output data buffer.



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A.Daviel,TRIUMF