I/V Data Extraction Circuit

Greetings,

I have a question about IBIS modeling.
Is the appropriate circuit for I/V Data Extraction defined strictly?

IBIS Forum I/O Buffer Modeling Cookbook says
an independent voltage source should be used to generate I/V Data.
But I/O Buffer Information Specification seems to tell
the Cref, Rref, and Vref of [Model] section construct I/V Data Extraction
circuit.

Could you please let me know it?

Regards,
Takafumi NISHI
LSI Development No. 2,
Yasu Technology Application Laboratory,
IBM Japan, Ltd. Yasu
Received on Wed Jun 28 04:28:55 2000