Specifications

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 100 MHz 3.5 ns pulse width, < 600 ps rise time HP 8133A option 003
Function Generator Accuracy ≤ (5)(10
−6
) × frequency HP 3325B Option 002
SMA Cable HP 8120-4948
Adapter BNC(m)-SMA(f) HP 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)
3–60