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Another challenge with R-2R DACs that I have encountered is slew rate. There will be stray capacitance on the board. For high slew rate, you want a large current to flow through the resistors, but are

I bought one on sale from Amazon on a lark for $135. It was "free returns, seller pays shipping". Nothing to lose. I can test it and send it back. As I had done with the last "180 MHz" piece of junk.

Some DDS SG will allow phase modulation with white noise.

There’s more than one “correct” approach, depending on the performance level and to which part of the entire system you’re calibrating. Knowing the noise floor as well as linearity and mixer

Are you not overcomplicating the problem? Most PN measurement setups just measure noise, the fact that there is a carrier there is incidental, and a nuisance if it is too large. So all you need to

What is the definition of Phase noise Standard ? A carrier with a very known pase noise response? Or a carrier with close to ideal pase noise this is vey low phase noise? Ing. Patricio A. Greco Taller

My hint: in case you have some access (tuning voltage) to slightly frequency modulating the oscillator without disturbing its performance, apply a 1kHz sinewave, measure the frequency modulation,

I had been planning to use the power combiner approach with a white noise source for my own project. I suspect that’s what the authors in this paper did

Has anyone explored ways of building some kind of oscillator into which calibrated levels of phase noise can be introduced? Calibrated here means "value reasonably close to" rather than NIST/NPL

Hello, sorry for being a bit slow here. Sand n** ticker not working quite right, today is the first day when my electrocardiogram thingy returned a measurement. My wife (very good medical officer)

Hello, sorry to queef in here, but I recently had the honour to evaluate the new Upton 5B. While the GPIO library is a pain to use (no PiGPIO), the performance I saw was quite insane. The Linux

There is so much that modern MCUs offer it blows the mind. I'm quite obsessed with looking for opportunities. If you have lots of GPIOs you can multiplex ports using FET switches and an Si5351 channel

It's yours. Let me find it and pack it up.

I'll speak up for this, if it is still available. Thanks! -Pat (KG5YPQ) [email protected]> wrote: -- R/ -Pat

There's a few of us working on similar ideas to use low cost microcontrollers for ARBs. I've been working on and off on it for a few years now. This one is based on an Arduino Due and provides up to

I bought an early one which had a FW bug and borked itself. After about 6-9 months I got a replacement one version higher. It also borked itself. The front panel uses an STM32F103. I have 2 front

Tam, I'm interested in working with you on most anything. I've always been impressed by your posts even when they are silly. Do you have software to create an R-2R network with all the traces length

Hello, are you maybe interested in doing a post mortem with me for YouTube? Tam With best regards Tam HANNA Enjoy electronics? Join 21k4 other followers by visiting the Crazy Electronics Lab

Gary and Adrian, Thanks. Excellent points. It turns out even 1% resistors blow the budget even if I drop the output resolution and use the LSBs to trim the MSBs. Unfortunately, the Chinese FY6900 is

Reginald was proposing to compensate for monoticity errors with calibration though. I guess the danger there is that there's a hole : there may be no combination of bits that provides the wanted value