[SI-LIST] impedance matching for high freq PCB
- From: Betty Luk <bl87@xxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Wed, 29 Jan 2003 20:24:54 -0500
Dear SI experts,
I am working on a project to test high speed optoelectronic circuits
(hopefully up to the 1-3GHz range). I am making a PCB board to drive the
circuit (a CMOS gate). So I am faced with the problem of matching a 50Ohm
line to almost infinite impedance.
1) Traditional termination schemes using resistors such as parallel and
series termination - up to what frequencies are these methods valid?
2) if not, what other schemes should be considered?
Thank you in advance,
Betty
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