[SI-LIST] Re: IBIS model
- From: "Ingraham, Andrew" <Andrew.Ingraham@xxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 16 Dec 2002 08:37:35 -0500
> In one of our design we have CDC2509 (PLL clock driver),
> Data sheets says that each output has an integrated 25ohm series
> damping
> resistor
> When i need do SI with spectra quest should a 25ohm series resistor
> connected to output of the CDC2509 model or IBIS model take care of
> this
> series resistor .
Whether you have a SPICE model or an IBIS model, the model should
include everything that is "integrated" in the buffer.
No, don't add a 25 ohm resistor, unless you intend to use a real
resistor external to the device.
Regards,
Andy
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