The Designer's Guide Community
Forum
Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.
Mar 28th, 2024, 5:14am
Pages: 1
Send Topic Print
How to connect PCB and FPGA board? (Read 4486 times)
mixed_signal
Senior Member
****
Offline



Posts: 183

How to connect PCB and FPGA board?
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?
Back to top
 

FPGA__connectivity.jpg
View Profile   IP Logged
ULPAnalog
Community Member
***
Offline



Posts: 97

Re: How to connect PCB and FPGA board?
Reply #1 - Apr 15th, 2016, 10:50pm
 
Is the separation half a meter?
Back to top
 
 
View Profile   IP Logged
mixed_signal
Senior Member
****
Offline



Posts: 183

Re: How to connect PCB and FPGA board?
Reply #2 - 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?
Back to top
 
 
View Profile   IP Logged
loose-electron
Senior Fellow
******
Offline

Best Design Tool =
Capable Designers

Posts: 1638
San Diego California
Re: How to connect PCB and FPGA board?
Reply #3 - 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.
Back to top
 
 

Jerry Twomey
www.effectiveelectrons.com
Read My Electronic Design Column Here
Contract IC-PCB-System Design - Analog, Mixed Signal, RF & Medical
View Profile WWW   IP Logged
Pages: 1
Send Topic Print
Copyright 2002-2024 Designer’s Guide Consulting, Inc. Designer’s Guide® is a registered trademark of Designer’s Guide Consulting, Inc. All rights reserved. Send comments or questions to editor@designers-guide.org. Consider submitting a paper or model.