Agilent Technologies DisplayPort Servisní příručka stáhnout pdf (Strana 135)

Calibrating the Infiniium Oscilloscope and Probe 14

U7232A DisplayPort Compliance Testing Notes 135

Probe Calibration and De-skew

Before performing DisplayPort tests you should calibrate and de- skew the

probes.

SMA probe head Atten/Offset Calibration

1 Referring to Figure 52 below, perform the following steps:

a Ensure that a probe, attached with SMA probe head is connected to

Channel 1. Install the 82

Ω resistors into the SMA probe head.

Connect the de- skew fixture to Aux Out. Clip the resistors on

de- skew fixture. These resistors are only required for probe

calibration and de- skew.

b Click on the Setup>Channel 1 menu to open the Channel Setup

window.

c Click the Probes button in the Channel Setup window, to open the

Probe Setup window.

Figure 52 Channel Setup Window.

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Agilent Technologies DisplayPort Servisní příručka Strana 135