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PICList Thread
'[EE]: Source for resonators'
2006\07\06@104031 by Denny Esterline

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I'm on my first foray in to a dsPIC project. It's going to be automotive mounted, so I'm not all that comfortable with a regular crystal, I'd rather have a ceramic resonator. Looks like 7.37Mhz is the right choice for dsPics (baud rate multiple and with the PLL, almost full speed) But I can't seem to find a supplier that has any in stock. (through hole)

Any suggestions?

Thanks,
-Denny


2006\07\06@112314 by Ray Newman

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Surplus Traders listed:

http://www.73.com/a/0420.shtml

Over 260,000 Pcs!  KYOCERA RESONATORS - 7.37MHZ KYOCERA, KBR-7.37 MKSTF, f = 7.37 MHz, - 3 legs. On reels of 2,000 pcs. Original cost was $272/m. Serious offers considered. TG471
Have no idea what min. qty/price.
Ray


On Thu, 6 Jul 2006 10:41:14 -0400, Denny Esterline wrote:
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2006\07\06@112621 by Wouter van Ooijen

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> I'm on my first foray in to a dsPIC project. It's going to be
> automotive mounted, so I'm not all that comfortable with a
> regular crystal, I'd rather have a ceramic resonator. Looks
> like 7.37Mhz is the right choice for dsPics (baud rate
> multiple and with the PLL, almost full speed) But I can't
> seem to find a supplier that has any in stock. (through hole)

I have the usuall suspects in stock (4,6,10,20,25) but no 7.37. Now if
you want 1k ...

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\07\06@114343 by Bob Axtell

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Denny Esterline wrote:
> I'm on my first foray in to a dsPIC project. It's going to be automotive mounted, so I'm not all that comfortable with a regular crystal, I'd rather have a ceramic resonator. Looks like 7.37Mhz is the right choice for dsPics (baud rate multiple and with the PLL, almost full speed) But I can't seem to find a supplier that has any in stock. (through hole)
>
> Any suggestions?
>
> Thanks,
> -Denny
>
>
>  
Mouser has 7.37M Ceramic 3-terminal resonators. P/N 581-PBRC-7.37B, but
they are only SMD.

You are right about ceramic resonators, they can handle punishing
vibration, while crystals can't.

--Bob

2006\07\06@132402 by Denny Esterline

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>
>
> Mouser has 7.37M Ceramic 3-terminal resonators. P/N 581-PBRC-7.37B, but
> they are only SMD.
>
> You are right about ceramic resonators, they can handle punishing
> vibration, while crystals can't.
>
> --Bob


That's what I get for writing while I'm on my way out the door :-)
It's a non-stock Item at Digikey, and I had already found that Mouser only
has the surface mount version.

-Denny

2006\07\06@132647 by Denny Esterline

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On 7/6/06, Ray Newman <spam_OUTlistTakeThisOuTspammicrodesigns.biz> wrote:
>
>
> Surplus Traders listed:
>
> http://www.73.com/a/0420.shtml
>
> Over 260,000 Pcs!
> KYOCERA RESONATORS - 7.37MHZ
> KYOCERA, KBR-7.37 MKSTF, f = 7.37 MHz, - 3 legs. On reels of 2,000 pcs.
> Original cost was $272/m. Serious offers considered. TG471
>
> Have no idea what min. qty/price.
> Ray


"Serious offers ", some how I don't think the 1/2 dozen I need would be
considered "serious" to a person trying to sell 1/4 million :-)

-Denny

2006\07\06@152111 by Bob Axtell

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Denny Esterline wrote:
{Quote hidden}

Denny, can you get by with twice freq (7.37 * 2 = 14.75M) ?

--Bob

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