From: Patel, Bhavesh ([email protected])
Date: Fri Mar 09 2001 - 09:34:08 PST
Hi! You could use any simulation tool such as Hspice or SigXP from Cadence
use the SPICE driver model connected to either stripline or microstrip trace
model to achieve 50ohm impedance with the trace length and at the end use
the appropriate receiver model. You could verify this with varying sources
i.e pulse or random bit pattern.
Bhavesh
-----Original Message-----
From: SHRIPADARAJ AD [mailto:[email protected]]
Sent: Thursday, March 08, 2001 8:30 PM
To: [email protected]
Subject: [SI-LIST] : driving into 50 Ohm impedence
Hi all SI expert,
This may be a silly question, but not for me.
I have a fibre channel transceiver operating at 1.2 Gbps data rate. It has
differential o/p and o/p level specs are as below,
1800 mV(p-p) driving 50 Ohm to VDD-2.0v.
What does it mean ? I am novice to this field.
I have beeen given spice netlist of the o/p driver and asked to verify that
driver meet about voltage level requirement. How should do that ?
Any pointers in this regard would be of great help to me
Thanks in advance
Shripad
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