Speed Up Debug and Analyze
  

 

SMART Triggers® 

The Waverunner-2 scope’s trigger bar is simple to operate. Run the scope in normal or auto trigger modes, or capture one-time events into scope memory as large as 8 Mpts with a single-shot trigger. Triggering with Waverunner-2 is direct, easy to read and easy to understand. 

SMART Trigger provides the flexibility needed to quickly trigger on the specific signal characteristic or pattern you are searching for. All Waverunner-2 oscilloscopes include SMART Triggers. Trigger not only on what you expect, but also on unusual signals. Exclusion triggers can exclude normal signals and capture only the abnormal ones, speeding up the debug of your circuits and systems. Trigger on signals down to 2 ns in width. The optional Advanced Trigger Package (ATP) extends Waveunner-2’s SMART Trigger capability by adding runt and slew rate trigger for the capture of intermittent events.

Runt triggering is great for capturing logic signals that exhibit inadequate levels or spurious signals that interfere with circuit operation. With the exclusion/inclusion feature, the scope will only trigger on runt signals that are outside/within a specified range of pulse width.

Use HISTORY Views to Find Intermittents

Pressing the green Analog Persist button and selecting History converts the scope into a fast Analog Persistence fault-finder. The lifetime of your signal is written into the History memory and mapped on screen. You can measure each signal, see its trigger time, and identify rare events. Up to 4,000 events can be acquired for playback. This is great when you have intermittent problems and want to know if they occur at a rate related to other circuit or system timing events.

Press “play” to replay the signal history and automatically scan and search from sweep to sweep. 

Stop when you see something of interest. The display shows the Analog Persistence view of all acquired sweeps as well as the individual sweep under inspection. Since the time of each trigger event is displayed with a resolution of 1 ns, you can easily determine the rate of occurrence.

HISTORY lets you see the intermittent, trigger on the problem and find how often it’s disrupting your design.

Waverunner-2 Basic Triggers

Name 

Description

Edge

Select + or - slope and holdoff by time or events.

Window

Triggers when signal crosses outside the window in either direction.

Waverunner-2 SMART Triggers

Name 

Triggers Conditions

Glitch 

From 2 ns - 20 s and when pulse is >, <, or in or out of a range.

Interval

Between edges and ranges of 10 ns - 20 s.

Qualified

By edge or state on a channel or if a pattern is present or absent. 

Dropout

If input drops out after a time from 25 ns - 20 s.

Runt *

Pulse levels, edge, widths from 2 ns - 20 s.

Slew Rate *

Slope, dV, dT from 1 ns - 20 ns.

Pattern (logic)

Logical combination of up to 5 inputs (3 on two channel models). Can also be used in combination with Qualified.

* Optional Advanced Trigger Package (ATP)

 

Copyright © LeCroy Corporation 2008