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AD5933-Slide8

The frequency generator allows an external complex impedance to be excited with a known frequency. The receive stage receives the input signal current  from the unknown impedance and is sampled by the on-board ADC producing a Discrete Fourier Transform (DFT) that is processed by an on-board DSP engine. The DFT algorithm returns a real (R) and imaginary (I) data-word at each output frequency.

PTM Published on: 2007-09-17