To Test The Threshold Accuracy; Set Up The Equipment - Agilent Technologies 1680 series Service Manual

Chapter 3: Testing Performance

To test the threshold accuracy

To test the threshold accuracy
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 a pass/fail reading in the performance test
record located at the end of this chapter.
Equipment Required
Equipment Critical Specifications
Digital Multimeter 0.1 mV resolution, 0.005% accuracy
Function Generator
BNC-Banana Cable
BNC Tee
BNC Cable
BNC Test Connector, 17x2

Set up the equipment

1 If you have not already done so, do the procedure "To set up the test
equipment and the logic analyzer" on page 23.
2 Set up the DC source to deliver a DC voltage on the output:
a In the function generator Utility menu, activate the DC Level. All AC
voltage functions will be disabled.
b Enable the high impedance load under the Output Setup menu.
3 Using a BNC-banana cable, connect the voltmeter to one side of the BNC
Tee.
4 Connect the BNC Tee to the output of the DC source. Set up the logic
analyzer.
28
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Accuracy (5)(10 ) frequency,
DC offset voltage ±1.5 V
Recommended Model/Part
3458A
33250A
11001-60001
1250-0781
8120-1840