General question related to FPGA

[Usman Rashid]

I am learning about FPGA. I have question general question related to it.

Doc1.docx

A FPGA is connected to a 14-bit DAC and to an output amplifier. The DAC have a sampling of 2.5GSPS and is updated with DDR data f = 625MHz over a LVDS interface from the FPGA.

Check attached picture

For simplicity expect that the FPGA, DAC and the output amplifier are connected to same supply voltage from a 3,3V buck converter.

Is a decoupling for this circuitry necessary? o What are the reasons to decouple this three components? o What is necessary to decouple the three components? You can add as many additional components you like o What is the real data rate between the FPGA and the DAC? How many pins need be minimum connected between DAC and FPGA. o Which are the most important parameters for the output amplifier? o What is the maximal output voltage of the output amplifier?

[RK]

This post has nothing at all to do with Nordic. Why have you posted it here? Nordic doesn't make FPGAs, they don't make output amplifiers, they don't make DACs either.

Try stackoverflow

[Usman Rashid]

What is stackoverflow ?

[Daniel Wang]

lmgtfy.com/