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DisplayPort Test Implementation Group 17 Agilent J-BERT N4903B & 90000A/X/Q Series Sink Draft2

Figure 10: HBR2 RJ Measurement

Note: In this example, the measured RJ value is 16.4mUI RMS. The measured RJ is

multiplied by 12.0 to reach the 10

-9

BER value in the specification to use for the

correction in 9.3.1. In this case, this is 16.4 x 12.0 = 196.8mUI.

9.3 SJ Calibration

9.3.1 SJ

FIXED

Calibration

1. For HBR2 only, Calibrate SJ

FIXED

using D24.3 pattern with JMD using constant clock at TP3_EQ.

a. In the J-BERT N4903B Jitter > Jitter Setup Menu, disable all Jitter terms accept PJ 1

b. Set the frequency in PJ 1 to 200MHz.

Figure 11: J-BERT N4903B HBR2 SJ

FIXED

Adjustment

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Agilent Technologies DisplayPort Manuale Utente Pagina 17