To Test The Threshold Accuracy (Logic Analyzer); Set Up The Equipment - HP 1660C Series Service Manual

To test the threshold accuracy (logic analyzer)

Testing the threshold accuracy verifies the performance of the following specification:
•
Clock and data channel threshold accuracy.
These instructions include detailed steps for testing the threshold settings of pod 1.
After testing pod 1, connect and test the rest of the pods one at a time. To test the
next pod, follow the detailed steps for pod 1, substituting the next pod for pod 1 in
the instructions.
Each threshold test tells you to record the voltage reading in the performance test
record located at the end of this chapter. To check if each test passed, verify that the
voltage reading you record is within the limits listed on the performance test record.
Equipment Required
Equipment Critical Specifications
Digital Multimeter 0.1 mV resolution, 0.005% accuracy
Accuracy ≤ (5)(10
Function Generator
DC offset voltage ±6.3 V
BNC-Banana Cable
BNC Tee
BNC Cable
BNC Test Connector,
17x2

Set up the equipment

Turn on the equipment required and the logic analyzer. Let them warm up for
1
30 minutes before beginning the test.
Set up the function generator.
2
a Set up the function generator to provide a DC offset voltage at the Main Signal output.
b Disable any AC voltage to the function generator output, and enable the high voltage
output.
c Monitor the function generator DC output voltage with the multimeter.
Recommended Model/Part
HP 3458A
−6
) × frequency,
HP 3325B Option 002
HP 11001-60001
HP 1250-0781
HP 10503A
3–9