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TDA2EXEVM: IBIS model for DDR-CPU ADD/CMD/CLK 60ohm impedance

James Lee
Expert 3145 points

Part Number: TDA2EXEVM

Hello,

My customer is setting output impedance for CPU-DDR ADD/CMD/CLK pins to 60ohm but cannot find the setting for 60ohm in TDA2Ex IBIS model.

From, j6entry_CBD_IBISv1.0.0.zip:

|*****************************************************************************************
|     Usage OUTPUT#1.35/1.5###DDR_SEIOPB_V.PAD
|     Base model DDR_SEIOPB_V
|*****************************************************************************************
[Model Selector] Selector_20
Model_358 I/O,1.5V,SR011_DRV40_1P5
Model_359 I/O,1.5V,SR010_DRV40_1P5
Model_360 I/O,1.5V,SR101_DRV40_1P5
Model_361 I/O,1.5V,SR100_DRV40_1P5
Model_362 I/O,1.5V,SR110_DRV40_1P5
Model_363 I/O,1.5V,SR111_DRV40_1P5
Model_364 I/O,1.5V,SR001_DRV40_1P5
Model_365 I/O,1.5V,SR000_DRV40_1P5
Model_366 I/O,1.5V,SR011_DRV34_1P5
Model_367 I/O,1.5V,SR010_DRV34_1P5
Model_368 I/O,1.5V,SR101_DRV34_1P5
Model_369 I/O,1.5V,SR100_DRV34_1P5
Model_370 I/O,1.5V,SR110_DRV34_1P5
Model_371 I/O,1.5V,SR111_DRV34_1P5
Model_372 I/O,1.5V,SR001_DRV34_1P5
Model_373 I/O,1.5V,SR000_DRV34_1P5
Model_374 I/O,1.5V,SR011_DRV48_1P5
Model_375 I/O,1.5V,SR010_DRV48_1P5
Model_376 I/O,1.5V,SR101_DRV48_1P5
Model_377 I/O,1.5V,SR100_DRV48_1P5
Model_378 I/O,1.5V,SR110_DRV48_1P5
Model_379 I/O,1.5V,SR111_DRV48_1P5
Model_380 I/O,1.5V,SR001_DRV48_1P5
Model_381 I/O,1.5V,SR000_DRV48_1P5
Model_382 I/O,1.35V,SR011_DRV40_1P35
Model_383 I/O,1.35V,SR010_DRV40_1P35
Model_384 I/O,1.35V,SR101_DRV40_1P35
Model_385 I/O,1.35V,SR100_DRV40_1P35
Model_386 I/O,1.35V,SR110_DRV40_1P35
Model_387 I/O,1.35V,SR111_DRV40_1P35
Model_388 I/O,1.35V,SR001_DRV40_1P35
Model_389 I/O,1.35V,SR000_DRV40_1P35
Model_390 I/O,1.35V,SR011_DRV34_1P35
Model_391 I/O,1.35V,SR010_DRV34_1P35
Model_392 I/O,1.35V,SR101_DRV34_1P35
Model_393 I/O,1.35V,SR100_DRV34_1P35
Model_394 I/O,1.35V,SR110_DRV34_1P35
Model_395 I/O,1.35V,SR111_DRV34_1P35
Model_396 I/O,1.35V,SR001_DRV34_1P35
Model_397 I/O,1.35V,SR000_DRV34_1P35
Model_398 I/O,1.35V,SR011_DRV48_1P35
Model_399 I/O,1.35V,SR010_DRV48_1P35
Model_400 I/O,1.35V,SR101_DRV48_1P35
Model_401 I/O,1.35V,SR100_DRV48_1P35
Model_402 I/O,1.35V,SR110_DRV48_1P35
Model_403 I/O,1.35V,SR111_DRV48_1P35
Model_404 I/O,1.35V,SR001_DRV48_1P35
Model_405 I/O,1.35V,SR000_DRV48_1P35

Do we have any updated IBIS model which has 60ohm setting?

Regards,

James