7

Analysis Tools

PrecisionProbe provides many tools to allow you to know exactly what has

been characterized and what parameters have been improved by the innovative

software.

PrecisionProbe Wizard

PrecisionProbe provides an easy to follow guide with its wizard. The wizard

takes you step by step through the set up of the software and ensures that your

measurements are taken with the highest signal integrity.

Probe Correction

To maximize margins it is important to correct each probe identically and to ensure

the correction method is the same. The Probe Correction menu allows you to

change between Vout/Vin and Vout/Vsource. PrecisionProbe also allows for the

source impedance via s-parameter file or an estimate. This is important when

measuring Vout/Vsource to ensure a high level of accuracy as assuming an ideal

50 ohm environment can cause unwanted errors.

Bandwidth Control

Software such as PrecisionProbe can amplify high frequency noise when

correcting for the loss of a probe or cable. The high frequency noise can then

cause unwanted noise and inaccuracies. Bandwidth control allows you to remove

unwanted high frequency noise by providing a filter.

PrecisionProbe also provides the ability to control the amount of gain that is

applied to the signal. You can increase the amount of boosting which improves

risetimes but also increases noise, or you can decrease the amount of boosting

which decreases noise but degrades rise times.

Figure 9. Starting the PrecisionProbe wizard

Figure 10. Choosing the probe correction

that you need

Figure 11. Use bandwidth control to

maximize margins