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AD5933-Slide3

Pictured above is a simplified block diagram of a typical system used to analyze impedance. As you can see, a frequency stimulus is generated from a direct digital synthesizer or DDS (the AD9834 pictured above). This provides a simplified approach to generating a frequency sweep and allows very fine frequency tuning. The output frequency is often filtered and amplified before being applied to the known impedance.

PTM Published on: 2007-09-17