VME-CDM

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