Main menu
Measurement based IBIS Modeling
The IBIS models produced by Teraspeed Labs are measurement based. It alleviates the need for 3 party NDAs to get HSPICE descriptions of the I/O buffer cells of integrated circuits. If you can provide a datasheet and sample ICs we can make a model.
The modeling process is simple from a customer's point of view. After receiving a datasheet Teraspeed Labs will generate a fixed price quote. Once accepted Teraspeed Labs will design a test fixture that allows us to power up the IC and facilitate connection to our test system. We pay particular attention to the signal integrity of the interface between the IC and our test equipment. Specially design SMA or 2.92mm launches are used to provide a clean wide bandwidth interface to the test system. Our Tektronix DSA8300 80E04/80E03 sampling system acquires the timing and transition information from the IC. A Tek DG2020 parallel word generator is used to stimulate the IC and various -
A custom acquisition application orchestrates measurement process and converts the raw measurements to the IBIS model. All models are checked with the IBIS Golden Parser and simulated in Hyperlynx LineSim before shipment.
In our Lab we have a Tektronix DSA8300 with 80E04 20 GHz/80E10 50 GHz sampling heads with TDR. We can use those to characterize model devices in the time domain and with Tektronix's IConnect TDR based analysis software we can convert the time domain data into simulatable models. In addition IConnect and extract S-
In addition we have an Agilent N5230A 20 GHz 4 port VNA with an N4433A ECal plus a 85052B mechanical calibration kit. We use SPView III with our VNA and Hyperlynx for documentation and S-
If you don't understand IBIS models, are getting models that do not function and you need to fix them or need additional insight to their capabilities we can provide custom training to suit your needs.
We also do a variety of measurement consulting services. From TDR/IConnect classes, VNA calibration or just "How do I do this?" let's talk about your measurement needs.