DS90UB928Q-Q1: Accuracy of internal oscillator

NOBUO FUJIHARA

Genius 10105 points

Part Number: DS90UB928Q-Q1

Hi Champs,

My customer asked question about the accuracy of internal 200MHz RC oscillator.

Could you support this?

Best regards,

over 8 years ago

0 Palaniappan Manickam over 8 years ago

TI__Genius 10475 points

Hello,
Are you referring to the 33 MHz internal oscillator?

0 NOBUO FUJIHARA over 8 years ago in reply to Palaniappan Manickam

TI__Genius 10105 points

Hi Manickam,

According to AN-2198, internal reference oscillator has 200MHz frequency and divided to 33MHz.

So it is OK with accuracy of 33MHz clock.

Would you provide accuracy of 33MHz clock?

Regards,

0 Palaniappan Manickam over 8 years ago in reply to NOBUO FUJIHARA

TI__Genius 10475 points

Hello,
As noted in the internal pattern generator app note AN-2198, the internal oscillator frequency can be a min of 140 MHz, typical of 200 MHz and max of 260 MHz. So the variation is 200 MHz +/- 30%.

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DS90UB928Q-Q1: Accuracy of internal oscillator