Signal Integrity Of The Transferred Signal; Bandwidth - R&S RT-ZD40 Mode D'emploi

®
R&S RT-ZD40
5.1

Signal Integrity of the Transferred Signal

The following sections describe the effect that bandwidth, connection inductance
and common mode rejection ratio have on signal integrity.
5.1.1

Bandwidth

The bandwidth BW of a probe is one of its specific parameters. The bandwidth of
the probe and the bandwidth of the base unit together form the system band-
width. The following explanations refer to the probe itself, but can also be applied
to the entire system.
Fig. 5-2: Amplitude frequency response of the R&S RT-ZD40
The bandwidth
● Specifies the maximum frequency at which a purely sinusoidal signal is still
transferred at 70 % (–3 dB) of its amplitude.
See figure 5-2.
● Specifies the transferable spectrum for other waveforms. E.g. with square
wave signals, the fifth harmonic should still be within the bandwidth for a high
signal integrity.
● Determines the minimum measurable signal rise time. The rise time t
probe is inversely proportional to its bandwidth. The following approximation
applies:
User Manual 1410.5363.02 ─ 03
Measurement Principles
Signal Integrity of the Transferred Signal
of the
rise
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