Atlas Trigger Distributor PCB
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Transcript of Atlas Trigger Distributor PCB
Atlas Trigger Distributor PCBMatthew Bledsoe and Julia Grotto
Point of PCB
• Converts trigger signal from TTL to LVDS and transmits it and a reset and clock signal through 8 HDMI connectors
Schematic
Schematic Continued
12V to 3.3V Regulator
Trigger Signal
Trigger Signal
• Trigger comes from trigger processor as TTL
• We want LVDS for MMFE8 boards
• PCB converts from TTL to LVDS, and then distributes 8 trigger signals for 8 MMFE8s through the HDMI connectors
• Included a pushbutton to manually test trigger signal
40MHz Clock Signal
Clock Signal
• 40 MHz clock chip
• Input into LVDS distributor, distributes LVDS clock signal to 8 HDMIs
• Included toggle switch to toggle clock distributor on/off in case clock signal is too noisy
• Included LVDS to TTL converter to a BNC connector to output clock signal to other boards for synchronization purposes
Reset Signal
Reset Signal
• Input through BNC connector to LVDS distributor
• Distributes LVDS reset signal to 8 HDMIs
• Included a pushbutton to manually send reset signal
Power Layer of PCB
Routing of PCB
Top Layer Routing of PCB
Final Soldered Board