HP 3312A

[Aztlanpz]

Up to what frequency is the HP 3312A is rated to produce a square wave with low distortion?



Aztlan

[barry14]

The HP 3312A Function Generator will generate square waves up to its maximum frequency of 13 MHz.  The quality of the waveform is limited by the specified rise and fall times of 20 nanoseconds.

[wn1fju]

In the classical sense, "low distortion" and "square wave" do not belong in the same sentence!  A square wave has lots of harmonics (infinite in the purely theoretical sense) and by definition has high distortion (approaching 50%).  If you mean by "low distortion," namely what "looks good on a scope," then, as the previous post says, it is limited by the 20 ns rise and fall times which will turn a high frequency square wave into a trapezoidal waveform.