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https://designers-guide.org/forum/YaBB.pl Design >> High-Speed I/O Design >> How to connect PCB and FPGA board? https://designers-guide.org/forum/YaBB.pl?num=1460780669 Message started by mixed_signal on Apr 15th, 2016, 9:24pm |
Title: How to connect PCB and FPGA board? Post by mixed_signal on Apr 15th, 2016, 9:24pm Hi, I have a custom RFIC in QFN package with bond wires. The IC is soldered on a PCB. There are 20 digital I/Os in custom board and they need to be controlled using Kintex FPGA board.The data speed is 40Mbps in each I/O. How to connect the PCB and FPGA board (see attached figure)? The FPGA board has FMC connector. I am planning to use board to board flexible connector between my PCB and FPGA board. Is there better solution? |
Title: Re: How to connect PCB and FPGA board? Post by ULPAnalog on Apr 15th, 2016, 10:50pm Is the separation half a meter? |
Title: Re: How to connect PCB and FPGA board? Post by mixed_signal on May 4th, 2016, 8:45pm Hi ULPAnalog, Yes the seperation is half meter. I am worried about logic levels. The buffers onchip are 1V CMOS single ended inveretrs. Do I need level shifters after FMC? |
Title: Re: How to connect PCB and FPGA board? Post by loose-electron on Jul 6th, 2016, 10:37pm that is a lot of parallel digital IO if you need all that distance, you might want to convert to LVDS output driver from one board, transfer over a twisted pair and then convert back thru LVDS receiver to the local PCB ground. |
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