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2-5
Troubleshooting Noise Problems
During test circuit development, you may encounter one or several of the
following problems:
A correctly specified filter does not cut the signal as required.
•
A relay does not disconnect a signal completely.
•
A weak signal shows exessive noise.
•
A DC reference voltage has high frequency spikes.
•
Such problems are likely to be caused by poor isolation or crosstalk.
Consider the following measures:
Troubleshooting DUT Board Problems
Lesson 2 – DUT Board Design Considerations
539
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