Agilent Technologies 8133A Instrukcja Obsługi Pobierz pdf (Strona 57)

Testing Performance 3

16800 Series Portable Logic Analyzers Service Guide 57

Test Pod 2 in 250 Mb/s Mode

1 Disconnect the E5383A Flying Lead Probe Set from Pod 1

and connect it to Pod 2 of the logic analyzer. Do not

remove the flying leads that are connected to CLK and

the data channels.

2 On the 8133A pulse generator, in the PULSE setup for

CHANNEL 2, press the COMP button to return the

outputs to normal.

3 Note that the signal on the oscilloscope has moved.

Change the oscilloscope’s horizontal position to 725 ps (or

as required) to center the measured pulse on the

oscilloscope display.

4 Verify the DC offset and adjust it if necessary. See

page 41.

5 Deskew the oscilloscope if necessary. See page 42.

6 Readjust the pulse width from the pulse generator as

measured on the oscilloscope. See page 43.

7 From the Agilent Logic Analyzer application’s main

menu, select Setup→Bus/Signal... or Setup→My Logic

Analyzer-1→Bus/Signal...

8 Scroll to the right and unassign all Pod 1 bits.

9 Ensure that the Pod 2 threshold is set to 1 volt (see

page 46).

10 Assign bits 2, 6, 10, and 14 of Pod 2.

11 Select the Sampling tab (at the top of the dialog). In the

State Options area, set clock Clk1 to Don’t Care.

12 Set Clk2 to Both Edges.

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 187 188

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Agilent Technologies 8133A Instrukcja Obsługi Strona 57