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Science Forum Index » Electronics - Design Forum » Simple interface LVTTL -> LVPECL How to ?
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| Per-Åke Andersson |
 Posted: Sat Feb 17, 2007 2:05 pm |
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Guest
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1. A simple LVTTL to LVPECL interface without interface IC ?
Any info ?
2. If I want a single ended output from a LVPECL,can I leave
the other differential output open (unconnected) ?
/Per-Ake |
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| John Larkin |
| Posted: Sat Feb 17, 2007 2:18 pm |
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On Sat, 17 Feb 2007 19:05:43 +0100, Per-Åke Andersson
<pa266quitspam@hotmail.com> wrote:
Quote: 1. A simple LVTTL to LVPECL interface without interface IC ?
Any info ?
Resistive level shifter, 4 resistors maybe. 2 resistors if you have an
intermediate supply rail available. I could draw it and post to abse
if you want.
Quote: 2. If I want a single ended output from a LVPECL,can I leave
the other differential output open (unconnected) ?
Yes. Vcc current will be better balanced if the loads are balanced,
but that will almost never matter.
John |
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