FPGA and needed components like ADC for high frequency RF signal analysis and process on MSc Thesis

Maker, DIY
1

Hello everyone,

I am studying as a graduate student in electrical and electronics engineering. For my thesis, with FPGA, I am going to process an input which is 240Mhz or 1.3GHz RF sine wave (the frequency could be lowered a bit but not much). After a user defined delay, I am going to generate an output digital signal which has the same period and frequency such as the input had.

I am quite new at this area, I need your advices on FPGA selection, ADC selection and the other needs for this study. I am planning to use VHDL, so any technical advise on communication protocols would be great for me as well! Cost efficient way would be prefered ofc :slight_smile:

Thanks in advance!

Kind regards,
Güneş

3

gseem.94

Thank you for contacting DigiKey , I am not that versed with FPGA and what you are trying to do , hoping one of our engineers can get the answers for you on here .

Thanks Craig

4

To capture a 1.3 GHz RF sine wave input without aliasing, you must sample at least twice its frequency.

According to the Nyquist theorem, that means a minimum sampling rate of:

2 × 1.3 GHz = 2.6 GSa/s

So as Analog to Digital Converter selection criteria using a Sampling Rate (Per Second) of 3G we could recommend this:

ADC07D1520CIYB/NOPB as IC ADC 7bit 2 Inputs and 2 Folding Interpolating in a 128-HLQFP (20x20) from Texas Instruments

Both main players for FPGAs: Xilinx (now AMD using Vivado or ISE) and Intel (former ALTERA using Quartus) provide robust VHDL support.

Maybe other suppliers can offer a more cost efficient way …. have a look at these development and EVAL boards:

XYLONI as TRION T8 F81 EVAL BRD from Efinix, Inc. or

ICE40HX8K-B-EVN as ICE40-HX8K BREAKOUT BOARD from Lattice Semiconductor Corporation or

AGLN-NANO-KIT as KIT HARDWARE FOR AGLN-NANO from Microchip Technology (Ex-Microsemi)

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