VME-CDM

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VME-CDM - GRIFFIN Clock Distribution Module

References

  • edev login: no public access, sorry!
  • edev-pps login: no public access, sorry!
  • ladd00 svn login: username: svn, password: svn
  • [1] VME-CDM project page on edev.triumf.ca
  • [2] Rev2 board schematics (link to edev)
  • [3] VME-CDM project page on edev gitlab
  • [4] Microsemi ARM processor linux software

General characteristics

Photos

Rev2 boards

Board schematics

VME_-_Clock_Distribution_Module_-_3D_Top_Assembly_Thumbnail.jpg

VME - Clock Distribution Module Rev2.pdf

Available hardware

  • LMK04821 PLL/clock cleaner
  • Socket for Atomic clock CSAC Symmetricom CSAC-SA.45s
  • Microsemi Smartfusion2 SoC M2S-FG484 (ARM CPU)
  • 10/100 Mbit/s ethernet
  • no VME interface
  • dual mode eSATA connector:
    • eSATA clock+sync input or
    • USB-A access to ARM CPU serial console via FTDI USB-serial chip
  • 24 clock+sync outputs (LVDS) via 6 mini-SAS connectors (SFF-8088)
  • 3 dual LEMO connectors: (from top to bottom) ("A" is left, "B" ir right)
    • LEMO1A - EXT_SYNC_IN (NIM or TTL sync)
    • LEMO1B - EXT_RefClk_IN (NIM or TTL clock)
    • LEMO2A - CLOCK_OUT1_NIM (LVDS_CLK7)
    • LEMO2B - selected by jumper: CLOCK_OUT2_NIM (LVDS_CLK6) or GPS_1PPS_IN
    • LEMO3A - 1PPS_OUT_NIM
    • LEMO3B - 10MHz_OUT_NIM
  • 4 red and 4 green LEDs