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Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
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Output raw high speed signal to SMA

TSchu3
Beginner
‎04-04-2025 12:27 PM
98 Views

Hello all, I have a test design with a simple ring oscillator.  I want to measure its freq. externally with an oscilloscope.   I want to export this signal to an SMA connector (single or differential). 
I currently have an Arria 10 GX board and a Terasic HSMC daughter board with several SMA outputs.

My problem is that when I try to route the output signal through the HSMC connector I get fitment errors since the pins are not compatible with GPIO only high speed differential.  Is there a way around this?  Does it require using a transceiver PHY?  This would not be ideal as I do not want to sample the signal. I want to observe a raw signal on the scope.

Is there another way to export my signal without using a transceiver?  Or the High Speed Differential pins?  My understanding is that GPIO pins are limited to 300Mhz.

Looking for any suggestions.

Thanks!

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