Updated HBD FEM Diagram
Clock Master
Clock fanout ADCOptical
out
Backplane
Crate
GTM/Ethernet
New Daughter card + DCM
Test pulse
ADC Clock master Optical trasmitter
backplane Clock fanout
Status• All boards are designed for the FEM system except for
the test pulse board.– Only the optical out need to be checked before fabrication
• Testing procedure– Clock master need to be tested first
• System download • Serial read-back• Clocks
– Clock fanout board next – Backplane +ADC – We now have a standalone system– Need optical board -> New DCM daughter card
• New DCM daughter card will be designed soon.
• Good news– We finally get HBD money
• Now we can fabricate these boards and buy the parts
Need to work out soon
• What items need to be purchased now for the data taking (long lead time items)– Power supply– Signal cables (how many we need ?)– Clock cables– What is the minimal channels need to be
instrumented?• how many ADC boards needed to built?• We don’t have production money
– Normally this fund is released after prototype and final design review.