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Waveform Generators

Last Update il y a 20 jours

Build a Bursting Sweep Notes on DDS (Direct Digital Synthesis) Using a Function Generator for Logic Pulses and Triggers Options for Model Series SDG7000A and Where to Find Them on the Waveform Generator Option for Model Series SDG6000X and Where to Find It on the Waveform Generator

How do I find the Spurious Free Dynamic Range (SFDR) for an SDG function generator?

Robert Howell

Last Update il y a un an

If the SFDR is not listed directly in the specifications, you can find it by selecting the largest value between the harmonic and non-harmonic spurious data from the specification sheet at the frequency of interest.

For example, here is the SDG6X generator specs for harmonic and non-harmonic distortion:

If the signal of interest was 500 kHz, then the Non-Harmonic spur spec of – 60dBc (which is the worst) would be the reported SFDR.

If the signal was 100 MHz, then it would be the harmonic distortion spec of -50dBc, which is the worst.

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