HP 1660 Series User Manual

To test the time interval accuracy (logic analyzer)
Testing the t ime 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 8131A Option 020
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
11 Turn on the equipment required and the logic analyzer. Let them warm up for
30 minutes if you have not already done so.
22 Set up the pulse generator according to the following table.
Pulse Generator Setup
Channel 1 Period Mode EXT TRIG
Delay: 0 ps 5 ns TRIG Slope: Positive
Width: 2.5 us THRE: 1.0 V
High: − 0.9 V
Low: − 1.7 V
COMP: Disabled
(LED off)
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HP 1660 Series Specifications

General

Category	Logic Analyzer
Glitch Trigger	Yes
Pattern Trigger	Yes
State Analysis	Yes
Transitional Timing	Yes
Trigger Modes	Edge, Pattern, Glitch