FMC ADC 100M 14b 4cha News
FMC ADC 100M 14b 4cha
4-08-2010: The board is working
Since mid July we have one board plugged in on Xilinx development kit and powered. Two channels are working as limited by Xilinx development kit clock connections (we’ll change our FMC connections on a V2 to cope with this). Some changes are needed to solve thermal problems. The ENOB & SNR are measured: >11 bits in all ranges. However, there seem to be still a problem with the harmonic distortion that is with -60dB somewhat higher than expected.
FMC ADC 100M 14b 4cha
28-05-2010: The board is a beauty!
For bringing the SMC connectors I passed by the assembly workshop and had a chance to have a look at the three assembled PCBs. The boards look really beautiful with the four rows of black Panasonic switches clearly visible. With the gold-plated SMC connectors combined with the brushed aluminium front-plates they will look like a form of high-tech art!
FMC ADC 100M 14b 4cha
06-04-2010 Production will start.
Twelve PCBs are ordered. Three will be mounted for prototyping. Components are ordered for ten.
FMC ADC 100M 14b 4cha
24-03-2010 PCB layout review held
A very useful review (Review24032010) has been held that introduced several improvements. Overall the layout was already fine and would have given a working board. Certain of the suggested changes will make the layout better, likely improving SNR and EMC features. Other changes will improve the production process or are just cosmetical.
FMC ADC 100M 14b 4cha
19-03-2010 PCB layout done. Review planned
PCB review planned for 24 March 2010.
FMC ADC 100M 14b 4cha
2-03-2010 Schematics review held
The schematics review (Review02032010) revealed some serious problems and signalled other issues that will make the design more robust. Other comments will make that the documentation will be improved. The changes will be implemented before finalising the PCB layout.
FMC ADC 100M 14b 4cha
24-02-2010 Draft PCB layout done. Review planned
Draft PCB layout done. Design document being written. Design review planned for 2 March. See documents here.
FMC ADC 100M 14b 4cha
10-02-2010 New Design made
New design made with 3 input ranges and programmable offset. Need to finalise local clock circuit before PCB layout can start.