Agilent Technologies DisplayPort Uživatelský manuál stáhnout pdf (Strana 34)

Agilent Technologies, Inc.

DisplayPort Test Implementation Group 34 Agilent J-BERT N4903B & 90000A/X/Q Series Sink Draft2

ii. For HBR:

• Clock Recovery Method = Second Order PLL

• Nominal Bit Rate = 2.7Gb/s

• Loop Bandwidth = 10MHz

• Damping Factor = 1.51

iii. For RBR use external trigger for ISI and eye height measurements, see C

appendix.

For RBR RJ measurements use:

• Clock Recovery Method = Second Order PLL

• Nominal Bit Rate = 1.62Gb/s

• Loop Bandwidth = 10MHz

• Damping Factor = 1.51

g. In Acquisition, select Manual and increase the Record Length to 8.4Mpts or higher. This will

ensure one Million Unit Intervals as specified in the PHY CTS 1.2b. It also represents

repeatable jitter measurements on the CP2520 pattern used for HBR2.

h. Click Calibration, using the defaults.

i. Press Finish from the Calibration screen.

j. Before leaving the Jitter menu, select mUI as the Units.

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Agilent Technologies DisplayPort Uživatelský manuál Strana 34