Specifications

Pulse Parameter Definitions

Jitter

Short-term instability of one edge relative to a reference edge. Usually specified as rms value, which is one standard deviation or “sigma”. If distribution is assumed Gaussian, six sigma represents 99.74% of the peak-peak jitter.

The reference edge for period jitter is the previous leading edge. That for delay jitter is the leading edge of the trigger output. Width jitter is the stability of the trailing edge with regard to the leading edge.

Stability

Long-term average instability over a specific time, for example, hour, year. Jitter is excluded.

Pulse Levels

Pulse output is specified as pulse top and pulse base (usually referred to as high level and low level), or as peak to peak amplitude and median offset. A “window” specification shows the limits within which the pulse can be positioned.

High Level

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Amplitude

 

 

 

Median

 

 

Max

 

 

 

 

 

High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level

 

 

 

 

 

 

 

Window

 

 

 

 

 

 

 

Low Level

Offset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low

 

 

 

 

 

 

 

 

 

Level

 

Zero Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Agilent Technologies 660MHz, Agilent 81130A 400 manual Jitter, Stability, Pulse Levels, 115