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'[EE]: Need resonators'
2001\03\20@074301 by Roman Black

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Hi everyone, we are looking for 100 to 500
ceramic resonators, CSA 16.0MHz 2-pin

Does anyone know a cheap source that is fairly
quick? (not 6 weeks, etc).
:o)
-Roman

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2001\03\20@114048 by Dan Michaels

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Roman Black wrote:
>Hi everyone, we are looking for 100 to 500
>ceramic resonators, CSA 16.0MHz 2-pin
>
>Does anyone know a cheap source that is fairly
>quick? (not 6 weeks, etc).


Roman, before you buy, I assume that you "have" tried 16 mhz
resonators with your ckt. I personally never had much luck
running PICs on such fast resonators.

- dan michaels
http://www.oricomtech.com
==================

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2001\03\20@162005 by Harold M Hallikainen

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       I run murata resonators at 16 MHz on 16c74's all the time. These are the
three pin version (built-in capacitors). I've never been able to get
anyone else's (other than murata) to work reliably.

Harold


On Tue, 20 Mar 2001 11:40:48 -0500 Dan Michaels <spam_OUToricomTakeThisOuTspamUSWEST.NET>
writes:
{Quote hidden}

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2001\03\20@164704 by Robert A. LaBudde

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At 11:42 PM 3/20/01 +1100, you wrote:
>Hi everyone, we are looking for 100 to 500
>ceramic resonators, CSA 16.0MHz 2-pin
>
>Does anyone know a cheap source that is fairly
>quick? (not 6 weeks, etc).
>:o)
>-Roman

Recently there was an auction for 16 MHz 3-pin resonators on eBay. If these
would work, I could probably dredge up an email address for the seller.
================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: .....ralKILLspamspam@spam@lcfltd.com
Least Cost Formulations, Ltd.            URL: http://lcfltd.com/
824 Timberlake Drive                     Tel: 757-467-0954
Virginia Beach, VA 23464-3239            Fax: 757-467-2947

"Vere scire est per causas scire"
================================================================

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2001\03\21@023837 by Roman Black

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Dan Michaels wrote:
>
> Roman Black wrote:
> >Hi everyone, we are looking for 100 to 500
> >ceramic resonators, CSA 16.0MHz 2-pin
> >
> >Does anyone know a cheap source that is fairly
> >quick? (not 6 weeks, etc).
>
> Roman, before you buy, I assume that you "have" tried 16 mhz
> resonators with your ckt. I personally never had much luck
> running PICs on such fast resonators.


Wow! We've made hundreds with the 16.0MHz and 16F84/20,
16F84A/20 and with never a problem... We use the 2 pin
type resonator, +2 22pF ceramic caps. I keep the resonator
real close to the PIC, and the ceramics one on each side,
and good earthing.

What problems have you had? I'm putting together a new
board now and would appreciate hearing your experiences.
:o)
-Roman

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2001\03\21@025336 by Michael Rigby-Jones

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> -----Original Message-----
> From: Dan Michaels [SMTP:.....oricomKILLspamspam.....USWEST.NET]
> Sent: Tuesday, March 20, 2001 4:41 PM
> To:   EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU
> Subject:      Re: [EE]: Need resonators
>
> Roman Black wrote:
> >Hi everyone, we are looking for 100 to 500
> >ceramic resonators, CSA 16.0MHz 2-pin
> >
> >Does anyone know a cheap source that is fairly
> >quick? (not 6 weeks, etc).
>
>
> Roman, before you buy, I assume that you "have" tried 16 mhz
> resonators with your ckt. I personally never had much luck
> running PICs on such fast resonators.
>
> - dan michaels
>
Most of our PIC based products run with a 20MHz resonator with internal caps
and I have yet to see any problems with startup.  In fact the only startup
problems I have seen was trying to run a 16F877 at 3.3volts using a 4MHz
resonator.  It wouldn't start reliably until I selected the HS fuses instead
of XT.

Mike

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2001\03\21@104755 by Dan Michaels

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At 06:37 PM 3/21/01 +1100, you wrote:
{Quote hidden}

Roman, I forget exactly - this was several years ago, and it just
didn't work. I admit that I didn't play with it very hard, but
just went over to using xtals for > 8mhz, and never seen a problem
there. Possibly the correct choice of resonator, as Harold indicated,
or more fiddling with layout/etc would solve it.

Sounds like you don't have a problem, but I would at least try
some sample resonators of the new buy before committing to large
quantities.

best regards,
- dan michaels
http://www.oricomtech.com
==================

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2001\03\22@043701 by Roman Black

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Dan Michaels wrote:

> >What problems have you had? I'm putting together a new
> >board now and would appreciate hearing your experiences.
>
> Roman, I forget exactly - this was several years ago, and it just
> didn't work. I admit that I didn't play with it very hard, but
> just went over to using xtals for > 8mhz, and never seen a problem
> there. Possibly the correct choice of resonator, as Harold indicated,
> or more fiddling with layout/etc would solve it.
>
> Sounds like you don't have a problem, but I would at least try
> some sample resonators of the new buy before committing to large
> quantities.


Thanks Dan. We have only used the one Murata brand,
and not had any problems. I have found these to be much
more reliable than "can" style crystals when the device
may be subjected to vibration. :o)
-Roman

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