Request for review of AD9280 ADC FRONT-end for UFH band, C band and S band applications.

Question

Hi, My customer needs an ADC interface that works for UHF, C-band, and S-band applications. Please review the attached schematic and suggest if any changes are to be made.

JudyChui · Accepted Answer

SYNCINB+/- are typically terminated with 100ohm if it is not terminated on the FPGA side. In the schematic, it shows that SYNCINB+/- are connected to SERDOUT. SYNCINB should be connected to FPGA SYNCOUT. 
 SYSREF is typically DC coupled. 
 Judy

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Request for review of AD9280 ADC FRONT-end for UFH band, C band and S band applications.

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