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PSoC 5, 3 & 1 MCU

Anonymous
Not applicable

Hello,

   

what is the IMO percent accuracy over the full temperature and voltage range with a 32.768-kHz External Crystal Oscillator (PLL Mode)?

   

I read in (AN2027 PSoC® 1 - 32.768-kHz External Crystal Oscillator) "the IMO can be as accurate as the ECO itself". Does this mean the IMO operate with a CM7V-T1A (http://www.microcrystal.com/images/_PDF/3_Crystal_Ceramic-Package/cm7v-t1a.pdf) 0.01%?

   

Thank you

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Esteemed Contributor II

You're right.

   

Precision of the crystal was listed as 100ppm = 0.000001 * 100 which is 0.0001 = 0.01%

   

this is nearly one minute/year.

   

The 20ppm version is even more precise. Resulting in a devitation of about 10s/a

   

 

   

Bob

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Anonymous
Not applicable

Thank you very much, Bob! Stands "10s/a" for "10 seconds/year"?

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Esteemed Contributor II

Yes, "a" is the physics abbreviation for "annum" which is "year"

   

 

   

Bob

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