Article View: sci.electronics
Article #3772Re: Transmission Lines - What Are They??
From: Chris Ng
Date: Thu, 16 Nov 1989 23:16
Date: Thu, 16 Nov 1989 23:16
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874 bytes
In article <24023@cup.portal.com>, mmm@cup.portal.com (Mark Robert Thorson) writes:
> A good cookbook rule for TTL is:
> 1) Series termination -- 10 to 100 ohms placed right near the driver. I.e.
>
> 2) Parallel termination -- 220 ohms to Vcc and 330 ohms to ground, placed
Parallel termination draws current constantly while
series termination does not. May be it doesn't matter in your design,
just a side note.
--
Chris Ng
UUCP: {asuvax | hrc}!gtephx!ngc
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!asuvax!hrc!chanel!ngc From: ngc@chanel.UUCP (Chris Ng) Newsgroups: sci.electronics Subject: Re: Transmission Lines - What Are They?? Message-ID: <46e0fd1a.1fbc0@chanel.UUCP> Date: 16 Nov 89 23:16:38 GMT References: <868@encad.Wichita.NCR.COM> <1989Nov12.013850.7756@utzoo.uucp> <24023@cup.portal.com> Organization: gte Lines: 20