Tabor Electronics 5251, User Manual

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5-1
Chapter 5
Performance Checks
Title Page
What’s in This Chapter ........................................................................................................... 5-3
Performance Checks ............................................................................................................. 5-3
Environmental Conditions ...................................................................................................... 5-3
Warm-up Period ................................................................................................................. 5-4
Initial Instrument Setting ..................................................................................................... 5-4
Recommended Test Equipment ............................................................................................ 5-4
Test Procedures ..................................................................................................................... 5-4
Frequency Accuracy ........................................................................................................... 5-5
Frequency Accuracy, Internal Reference ....................................................................... 5-5
Frequency Accuracy, External 10MHz Reference .......................................................... 5-5
Amplitude Accuracy ............................................................................................................ 5-6
Amplitude Accuracy, DAC Output ................................................................................... 5-6
Amplitude Accuracy, DDS Output ................................................................................... 5-6
Offset Accuracy .................................................................................................................. 5-7
Offset Accuracy, DAC Output ......................................................................................... 5-7
Offset Accuracy, DDS Output ......................................................................................... 5-8
Squarewave Characteristics ............................................................................................... 5-9
Squarewave Checks ....................................................................................................... 5-9
Sinewave Characteristics ................................................................................................... 5-9
Sinewave Distortion, DAC Output ................................................................................... 5-9
Sinewave Spectral Purity, DAC Output ........................................................................ 5-10
Sinewave Spectral Purity, DDS Output ........................................................................ 5-11
Sinewave Flatness, DAC Output .................................................................................. 5-11
Sinewave Flatness, DDS Output .................................................................................. 5-12
Trigger operation Characteristics ..................................................................................... 5-12
Trigger, Gate, and Burst Characteristics ...................................................................... 5-13
Mixed Trigger Advance Test ......................................................................................... 5-13
Delayed Trigger Characteristics ................................................................................... 5-14
Re-trigger Characteristics ............................................................................................. 5-15
Trigger Slope ................................................................................................................ 5-16
Trigger Level ................................................................................................................. 5-16