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应用文章
Both digital and RF designers are discovering that the FFT function in oscilloscopes can be very helpful when used in conjunction with the time domain view to validate and debug their prototypes. For example, an FFT view of the noise riding on a power supply rail can quickly isolate and identify an unwanted, coupled signal so that the source of the coupling can be determined.
Also, a growing number of RF oriented designs are driving spectral widths greater than 510 MHz or 1 GHz, the limit of real-time signal analyzer analysis bandwidth capabilities. Designers are finding that to achieve this greater analysis bandwidth, a digitizing oscilloscope has become an important tool for such applications. In essence, the oscilloscope becomes a wideband RF receiver.
This application note will outline how the Infiniium S-Series, V-Series and Z-Series oscilloscopes can be used to make a variety of FFT and wideband RF measurements to speed designs to market.
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