RE: [SI-LIST] : What speed scope should I consider?

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From: Chuck Hill (chuckh@altaeng.com)
Date: Sun Nov 14 1999 - 18:38:47 PST


Arpad,

I have a proprietary method of measuring the transient impedance. My
method is used to measure the output impedance of a buffer while switching
between high and low states. My measurements show that the output
impedance during buffer switching is often much higher than the on state
resistance.

Charles Hill, consultant

At 04:47 PM 11/12/99 -0800, Muranyi, Arpad wrote:
>I meant impedance vs. time, or non steady state but varying impedance,
>such as the impedance of a buffer turning on/off vs. time.
>
>Arpad
>==========================================================================
>
>-----Original Message-----
>From: Ron Miller [mailto:rmiller@Brocade.COM]
>Sent: Friday, November 12, 1999 3:54 PM
>To: si-list@silab.eng.sun.com
>Subject: Re: [SI-LIST] : What speed scope should I consider?
>
>
>Try Tektronix 11801 or a similar sampling scope from HP with the
>TDR option.
>
>Ron Miller
>
>
>"Muranyi, Arpad" wrote:
>
>
>Does anyone know of any instrument that can measure transient impedance?
>
>Arpad Muranyi
>Intel Corporation
>========================================================================
>
>
>Quote from previous correspondence:
>
>
>"Network analyzers measure steady state impedance, not transient impedance."
>
>
>
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>--
>
>Ronald B. Miller _\\|//_ Signal Integrity Engineer
>
>(408)487-8017 (' 0-0 ') fax(408)487-8017
>
> ==========0000-(_)0000===========
>
>Brocade Communications Systems, 1901 Guadalupe Parkway, San Jose, CA 95131
>
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>
>
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