RE: [SI-LIST] : VTT supply

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From: Chris Cheng (hycheng@3pardata.com)
Date: Mon Mar 13 2000 - 11:07:32 PST


are you sure your 3.3v receiver threshold is lower than
1.5v ?
chris

-----Original Message-----
From: Jeff [mailto:jeffd323@yahoo.com]
Sent: Sunday, March 12, 2000 11:56 PM
To: si-list@silab.eng.sun.com
Subject: [SI-LIST] : VTT supply

Hi All,

Are there any "three-terminal-devices" that
will provide 1.5v termination power for 3.3v
logic?

I recently found an app-note from Linear Tech
for there LT1580, which claimed "bus termination
supply" as one of its applications.
However, looking at the data sheet, I couldn't see
how the part could "sink current".
When I contacted Linear Tech, they claimed that
the "bus termination" was a mistake.

Unfortunately, all the parts I have come across
all seem to have similar problems.

Does anyone know of a suitable part that can
both source and sink current for use as a
termination power supply?

Jeff

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