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Subject:	Re: impedance value very high
From:	Roger Tingler <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Roger Tingler <[log in to unmask]>
Date:	Fri, 15 Apr 2005 13:47:05 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (58 lines)

Eric,

Are you sure it's no a type-o
I have seen 32 Ohms +/-5% many times

Roger

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Eric Bonatti
Sent: Friday, April 15, 2005 12:28 PM
To: [log in to unmask]
Subject: [TN] impedance value very high


I have a puzzling question for you impedance experts:

A customer is asking for a PCB characteristic impedance for a single
trace to be 332 Ohms +/- 5%.

I've never seen a requirement for an impedance to be this high.  Has
anyone here seen this before?  HyperLynx is choking on this.

Thank you in advance for your input, it is greatly appreciated.


Eric Bonatti, C.I.D.
PCB Designer
StrataFLEX  Corporation
Tel.: +1.416.752.2224 xt.227
Fax: +1.416.752.6719
Toll Free: +1.866.771.7765
E-mail: [log in to unmask]
Web: www.strataflex.com

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