Look inside the palette called Signal Processing - Waveform measurements. There are a lot of functions here that you can use to get the information you desire. For instance, the Extract Tones function will output an array of clusters, with each cluster element giving the frequency, amplitude, and phase of the signal component. Go through the entire arry to see each frequency component of the complex waveform.
Also, in the Waveforms palette there is the Get Waveform Components function that will give you t0, dt, and Y components of the waveform. 1/dt should give you the sample rate. See attached VI.
