Pixel nSQP Electrical readout Status
30 likes | 164 Views
Pixel nSQP Electrical readout Status. Presented by David Nelson djn@slac.stanford.edu. Cable board layout status. Cable board layout is finished. Gerber files sent to Danilo. Danilo plans to fabricate 20 boards. 10 for CERN and 10 for SLAC.
Pixel nSQP Electrical readout Status
E N D
Presentation Transcript
Pixel nSQPElectrical readoutStatus Presented by David Nelson djn@slac.stanford.edu
Cable board layout status • Cable board layout is finished. • Gerber files sent to Danilo. Danilo plans to fabricate 20 boards. 10 for CERN and 10 for SLAC. • Please ask the board shop not to silk screen top side of PWB
E-board board layout status • More work on layout needed. • Proposed third mounting hold seems to be to close to 60 pin connector. Also need a rigid board covering the 60 pin connector. • Biasing of LVDS is still a concern. • Schematic suggests that Vos is set to 0.432 volts. Document says its 0.75 volt. • External bias pins, Vbp & Vpn, appear to be very low impedance as determined from schematics. Not possible to over-ride in one direction. • Mechanical drawing should reference centers of components for placement. • Can CERN board fabrication the e-board? • Rigid flex, nickel plating, gold flash 3rd hole