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Hi, Not sure if this will help or not, but just saw this on the SILabs forum posted by an employee:

I heard earlier and confirmed today that si labs had given certain recommendations regarding crosstalk on si5351a chip here is the link to the related page,. Hope it serves our cause too.

Hello Gordon, Order placed. Thank you sir for taking on this project. Ripley Sent from Mail for Windows 10 Sent: Tuesday, September 11, 2018 8:38 AM To: [email protected] Subject: Re: [BITX20]

Carl, I would think so.???#58782 ( /g/BITX20/message/58782 ) One VDDO pad per clock out should be much better than 3 clocks sharing the same power pad. Also the?QFN? package has

RCboatguy, The problem may not be the supply line but the ground line and even if there are more? its still current flowing on internal ground buses and the bulk silicon. The only way to know is

I am wondering if we could use the 8-output version of the Si5351 instead of the 3-output version to reduce the cross-talk.? The 8-output version has separate Vddox inputs per pair of clock outputs

AVAILABLE AGAIN! Found the package of boards sitting on a neighbor's doorstep. Hooray! Managed to get the listing re-activated (eBay isn't that easy to figure out....but I got it).

Raj The green display line is set at -43 dBc for a 33 dBm carrier level. None of the harmonics comes close to that level. The harmonics are higher than I would like but certainly acceptable. The test

All three with the 74AUP wich are one inverter per package. I didn't try the hex inverter part (6 inverters per package).? I suspect that needs testing? as you run into the same issues of common

Looks pretty good. I see unacceptable level 3rd harmonics below 18MHz. Raj

My LPF boards are in, I'll post them to testers asap. I'll also order some 45mhz filter boards too... 73 Nick VK4PP

Hi Raj As requested. Conditions: - 30 mVrms 1 KHz audio input - Power Out set to nominal +31 dBm which reads as 2 watts on my meter; set with RV1 - On board filter bypassed; external LPFs used as

perhaps you can replace either, arduino nano, interface if any to si5351 or si5351 itself. please see some videos. it is easy . with little effort you may also be able to load the firmware. If you

Hi all, Can anyone tell me how to obtain a replacement raduino board for my BitX40? 73 John M0JBA

Warren, Please share your spurs at 3.6, 7.2 and 14.2 with the same 100Mhz span. Want to compare with mine. Raj

Allison, I would be interested in further info on your checks with the Buffer. Did you buffer all three outputs in your test?? And measure the buffered one only or all three? I don't have access to

Please post a picture of it, we’d love to see it. Joe kd2nfc

Well that is unfortunate. I am sure they will show up eventually but “eventually” can be a pretty big window of time. Ripley KD8UYQ Sent from Mail for Windows 10 Sent: Monday, September 10, 2018

Hello Nick, Well they look dandy to me. Please let me (us) know when you start producing them. In the meanwhile I ordered on of Glen’s boards to start playing with. Ripley Sent from Mail for Windows

Well, we have an unexpected setback. The powers that be in my neighborhood concluded that our mailboxes were not uniform enough, so they spent our money and pulled up all of our existing mailboxes and