Re: Si5351 RF signal generator. #SI5351 #RF #Signal Generator #si5351 #rf #signal

Ashhar Farhan

You have to be careful of false responses. Let's imagine you are testing a bandpass filter at 6 mhz. As the si5351 sweeps from 1 mhz to 10 mhz, at 2mhz, the si5351's output will also contain 6 mhz harmonic and this will pass through the 6 mhz filter giving a false response that will lead you to believe that the filter is passing signal at 2 mhz as well.
- f

On Sun 10 May, 2020, 12:40 PM , <ashok.das81@...> wrote:
Hi all,

I was hoping to make a RF signal generator using SI5351. Similar projects already done as I found in internet.

My question is SI5351 is a clock generator and it generated Square wave. I wanted to say that it doesn't generate a clean sine wave. If I try to do testing of RF circuits using this will not there be problem due to harmonics ? Will it be sufficient for testing of circuits for HF ? The testing is in my home lab and not in any professional environment. Or should I go for a sine wave generator like AD9850 ? I need your suggestion before start on this project.

Thanks & Regards
Ashok Das

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