Empathy List Archives

HM

Hal Murray

Tue, Mar 14, 2017 12:11 AM

what about cheap crystals for microcontrollers.. I think the Arduino, for
instance, uses a crystal (and the oscillator electronics are inside the
Atmel part)

I assume you can save a few pennies if you use a raw crystal rather than an
oscillator. That probably matters in high volume low cost applications.

Atmel has the technology for making oscillators. That's an analog-ish corner
on what is mostly a digital chip. A lot of their chips are low standby power
which generally means an older digital process with thicker oxides that don't
leak as much. That probably makes analog corners easier, but I'm far from a
wizard at that area.

--
These are my opinions. I hate spam.

jimlux@earthlink.net said: > what about cheap crystals for microcontrollers.. I think the Arduino, for > instance, uses a crystal (and the oscillator electronics are inside the > Atmel part) I assume you can save a few pennies if you use a raw crystal rather than an oscillator. That probably matters in high volume low cost applications. Atmel has the technology for making oscillators. That's an analog-ish corner on what is mostly a digital chip. A lot of their chips are low standby power which generally means an older digital process with thicker oxides that don't leak as much. That probably makes analog corners easier, but I'm far from a wizard at that area. -- These are my opinions. I hate spam.

WH

William H. Fite

Tue, Mar 14, 2017 1:15 AM

https://www.youtube.com/watch?v=b--FKHCFjOM

On Mon, Mar 13, 2017 at 8:11 PM, Hal Murray hmurray@megapathdsl.net wrote:

jimlux@earthlink.net said:

what about cheap crystals for microcontrollers.. I think the Arduino,

for

instance, uses a crystal (and the oscillator electronics are inside the
Atmel part)

I assume you can save a few pennies if you use a raw crystal rather than an
oscillator. That probably matters in high volume low cost applications.

Atmel has the technology for making oscillators. That's an analog-ish
corner
on what is mostly a digital chip. A lot of their chips are low standby
power
which generally means an older digital process with thicker oxides that
don't
leak as much. That probably makes analog corners easier, but I'm far from
a
wizard at that area.

--
These are my opinions. I hate spam.

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--
Intelligence has never been proof against stupidity.

https://www.youtube.com/watch?v=b--FKHCFjOM On Mon, Mar 13, 2017 at 8:11 PM, Hal Murray <hmurray@megapathdsl.net> wrote: > > jimlux@earthlink.net said: > > what about cheap crystals for microcontrollers.. I think the Arduino, > for > > instance, uses a crystal (and the oscillator electronics are inside the > > Atmel part) > > I assume you can save a few pennies if you use a raw crystal rather than an > oscillator. That probably matters in high volume low cost applications. > > Atmel has the technology for making oscillators. That's an analog-ish > corner > on what is mostly a digital chip. A lot of their chips are low standby > power > which generally means an older digital process with thicker oxides that > don't > leak as much. That probably makes analog corners easier, but I'm far from > a > wizard at that area. > > -- > These are my opinions. I hate spam. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- Intelligence has never been proof against stupidity.

BC

Bob Camp

Tue, Mar 14, 2017 2:01 AM

Hi

If your application is happy with 0.1% accuracy, you use a simple crystal that costs
< 10 cents. If your application requires <0.001% accuracy, you probably are better
off using a packaged oscillator.

Bob

On Mar 13, 2017, at 8:11 PM, Hal Murray hmurray@megapathdsl.net wrote:

jimlux@earthlink.net said:

what about cheap crystals for microcontrollers.. I think the Arduino, for
instance, uses a crystal (and the oscillator electronics are inside the
Atmel part)

I assume you can save a few pennies if you use a raw crystal rather than an
oscillator. That probably matters in high volume low cost applications.

Atmel has the technology for making oscillators. That's an analog-ish corner
on what is mostly a digital chip. A lot of their chips are low standby power
which generally means an older digital process with thicker oxides that don't
leak as much. That probably makes analog corners easier, but I'm far from a
wizard at that area.

--
These are my opinions. I hate spam.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi If your application is happy with 0.1% accuracy, you use a simple crystal that costs < 10 cents. If your application requires <0.001% accuracy, you probably are better off using a packaged oscillator. Bob > On Mar 13, 2017, at 8:11 PM, Hal Murray <hmurray@megapathdsl.net> wrote: > > > jimlux@earthlink.net said: >> what about cheap crystals for microcontrollers.. I think the Arduino, for >> instance, uses a crystal (and the oscillator electronics are inside the >> Atmel part) > > I assume you can save a few pennies if you use a raw crystal rather than an > oscillator. That probably matters in high volume low cost applications. > > Atmel has the technology for making oscillators. That's an analog-ish corner > on what is mostly a digital chip. A lot of their chips are low standby power > which generally means an older digital process with thicker oxides that don't > leak as much. That probably makes analog corners easier, but I'm far from a > wizard at that area. > > -- > These are my opinions. I hate spam. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

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Re: [time-nuts] Bye-Bye Crystals