Agilent Technologies 1670G Series, Service Manual

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To test the time interval accuracy (logic analyzer)
Testing the time interval accuracy does not check a specification, but does check the
following:
•
125-MHz oscillator
This test verifies that the 125-MHz timing acquisition synchronizing oscillator is
operating within limits.
Equipment Required
Equipment Critical Specifications Recommended
Model/Part
Pulse Generator 150 MHz, 3.0 ns pulse width, < 600 ps rise time 8133A Option 003
Function Generator Accuracy
≤
(5)(10
−
6
)
×
frequency 3325B Option 002
SMA Cable 8120-4948
Adapter BNC(m)-SMA(f) 1250-2015
BNC Test Connector,
6x2
Set up the equipment
1
Turn on the equipment required and the logic analyzer. Let them warm up for
30 minutes if you have not already done so.
2
Set up the pulse generator according to the following table.
Pulse Generator Setup
Timebase Channel 1 Trigger
Mode: Ext Mode: Square Divide: Divide
÷
1
Period: 25.000 ns Delay: 0.000 ns Ampl: 0.50 V
High:
−
0.90 V Offs: 0.00 V
Low:
−
1.70 V
COMP: Disabled
(LED off)
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