Agilent Technologies Weather Radio 1680 Manual de usuario descargar pdf (Pagina 66)

Chapter 3: Testing Performance

To test the time interval accuracy

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

Set up the equipment

1 Set up the logic analyzer:

a If you have not already done so, do the procedure “To set up the test

equipment and the logic analyzer” on page 23.

b Exit and restart the Agilent Logic Analyzer applications to reinitialize

the logic analyzer.

2 Set up the pulse generator according to the following table.

Pulse Generator Setup

Equipment Critical Specifications Recommended Model/Part

Pulse Generator 200 MHz 2.5 ns pulse width, < 600 ps rise time 8133A option 003

Function Generator

Accuracy≤ (5)(10

-6)

x frequency

33250A

SMA Cable 8120-4948

Adapter BNC(m)-SMA(f) 1250-2015

BNC Test Connector, 6x2

Timebase Channel 1 Trigger

Mode: Ext Mode: Square Divide: Divide ÷ 1

Delay: 0.000 ns Ampl: 0.50 V

High: -0.90 V Ampl: 0.50 V

Low: -1.70 V Offs: 0.00V

COMP: Disabled (LED off)

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Agilent Technologies Weather Radio 1680 Manual de usuario Pagina 66