Specifications

Chapter 3: Testing Performance

Test Pod 1 in the 1250 Mb/s mode

1 Disconnect the Pod 2 E5382A Flying Lead Probe Set’s bits 2, 6, 10, and 14

from the SMA/Flying Lead test connectors’ pin strip connectors.

The original E5382A Flying Lead Probe Set should still be connected to

Pod 1. The J clock on Pod 1 will be used for all tests.

2 Connect the Pod 1 E5382A Flying Lead Probe Set’s bits 6 and 14 to the

SMA/Flying Lead test connector’s pin strip connector at the 8133A pulse

generator’s Channel 2 OUTPUT.

3 Connect the Pod 1 E5382A Flying Lead Probe Set’s bits 2 and 10 to the

SMA/Flying Lead test connector’s pin strip connector at the 8133A pulse

generator’s Channel 2 OUTPUT.

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

the COMP button to return the outputs to normal.

5 Note that the signal on the oscilloscope has moved. Change the

oscilloscope’s horizontal position to 450 ps (or as required) to center the

measured pulse on the oscilloscope display.

NOTE: You can temporarily reduce the frequency on the pulse generator and

increase the horizontal scale on the oscilloscope to verify that you are

measuring the correct pulse. Then return the settings to normal.

6 Verify the DC offset and adjust it if necessary. See page 46.

7 Set the frequency of the pulse generator. The logic analyzer will be tested

using a double-edge clock. The test frequency is half the test clock rate

because data is acquired on both the rising edge and the falling edge of the

clock. Set the frequency to 625 MHz plus the frequency uncertainty of the

pulse generator, plus a test margin of 1%.

For example, if you are using an 8133A pulse generator, the frequency

accuracy is ±1% of setting. Use a test margin of 1%. Set the frequency to

625 MHz plus 2% (638 MHz).

8 Verify the oscilloscope Deskew and adjust if necessary. See page 47.

9 Adjust the measured pulse width from the pulse generator to 750 ps

(minus the test margin) as described on page 72.

10 In the logic analyzer “Setup and Trigger...” window, select the Sampling