Help: awg and sfg

I just can't understand what is the difference between 'Arbitrary Waveform generator' and 'Synthesized Function generator'? Some basic points would be quite useful...





lennon_7

Arbitrary usually implies you get to specify the waveform using something like a Piece-wise table of voltage vs. time. FG usually implies it has a precanned set of functions, sine, trapazoid, triangle, square, pulse, etc.

An AFG often has the built-in waveforms of a FG plus can do arbitrary waveforms using a programmed piece-wise look-up table. Thus such an AFG can perform both types of tasks.