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RE: [N8VEM-S100:1271] LAVA-10 Zener Diode = 1N5226 (3.3v)
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- Subject: RE: [N8VEM-S100:1271] LAVA-10 Zener Diode = 1N5226 (3.3v)
- From: "Andrew Lynch" <LYN...@YAHOO.COM>
- Date: Sun, 6 Jan 2013 12:51:09 -0500
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Hi Paul! Thanks! Yes, the 3.3VDC Zener diodes are added after the 100 ohm
resistors for 5V to 3.3V level transition. In theory you don't need them
and adding the Zeners are kind of a "belt and suspenders" approach to level
transition. However the LAVA-10 is one expensive component so it is worth a
the extra expense to protect it. I'd consider them optional but a worthy
investment even if not needed.
Thanks and have a nice day!
Andrew Lynch
> -----Original Message-----
> From: n8vem...@googlegroups.com [mailto:n8vem-
> s1...@googlegroups.com] On Behalf Of Paul Birkel
> Sent: Sunday, January 06, 2013 2:50 AM
> To: n8vem...@googlegroups.com
> Subject: [N8VEM-S100:1271] LAVA-10 Zener Diode = 1N5226 (3.3v)
>
> Is it intended that 1N5226 (3.3v) Zener diodes be used for the logic-level
> shifting circuits (with the 100 ohm resistors)?
>
> -----