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22 wrz 2020 · The crucial test for any 70Mhz (or any other) bandwidth Oscilloscope (and probes) is to accurately display 70Mhz square wave in this case. Applying Nyquist sampling, means the rising and trailing edges of that 70Mhz square wave will display as a 400 pico Second slope.
How much bandwidth does your oscilloscope really need? Learn how to choose the correct bandwidth oscilloscope for your application. Choose a country or area to see content specific to your location
Oscilloscope bandwidth and frequency response can be tested with a swept frequency using a sine wave signal generator. Signal attenuation at the –3 db frequency translates into approximately –30% amplitude error. So you can’t expect to make accurate measurements on signals that have significant frequencies near your scope’s bandwidth.
Introduction. Bandwidth is the specification that most engineers consider first when they select an oscilloscope. In this application note we will provide you some helpful hints on how to select an oscilloscope with the appropriate bandwidth for both your digital and analog applications.
21 lis 2006 · Choosing an Oscilloscope with the Right Bandwidth. Bandwidth is the specification that most engineers consider first when they select an oscilloscope. This article provides some guidance on how to select an oscilloscope with the appropriate bandwidth for digital and analog applications.
Scope BW Calculation Step #4: Calculate required bandwidth. Step #1: Determine fastest rise/fall times of device-under-test. Source: Dr. Howard W. Johnson, “High-speed Digital Design –A Handbook of Black Magic”
Most typical users choose an oscilloscope to display and measure complex signals, seen as a graph of signal amplitude over time. Bandwidth, the number one banner specification, is defined in the frequency domain, not the time domain.
