Teledyne-lecroy QPHY-DDR3 Manual de usuario descargar pdf (Pagina 26)

26 917717 Rev C

QPHY-DDR3 TEST CONFIGURATIONS

Configurations include variable settings and limit sets as well, not just test selections. See the section for

a description of each variable value and its default value. See the QPHY-DDR3 Limit Sets section for

more information about the limit sets.

1) Clock tests DDR3-1333 (1 Probe)

This configuration runs all of the clock tests. All of the variables are set to their defaults. The limit set in

use is DDR3-1333. The tests run are:

• tCK(avg)

• tCK(abs)

• tCH(avg)

• tCL(avg)

• tCH(abs)

• tCL(abs)

• tJIT(duty)

• tJIT(per)

• tJIT(CC)

• tERR(n per)

2) CKdiff-DQse-DQSdiff 1333 Write Burst (3 Probes)

This configuration runs all of the tests that are run on write bursts of the DDR3 signals in which 3 probes

are required. All of the variables are set to their defaults. The limit set in use is DDR3-1333. The tests run

are:

• Eye Diagram – Write Bursts (Inputs)

• SlewR

• SlewF

• VIH(ac)

• VIH(dc)

• VIL(ac)

• VIL(dc)

• tDVAC

• tVAC

• AC Overshoot peak amplitude

• AC Overshoot area above VDDQ

• AC Undershoot Peak Amplitude

• AC Undershoot Area below VSSQ

• VOH(ac/dc)

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Teledyne-lecroy QPHY-DDR3 Manual de usuario Pagina 26