DS90UB928Q-Q1: Jitter when internal oscillator is used

NOBUO FUJIHARA

Genius 9355 points

Part Number: DS90UB928Q-Q1

Hi Champs,

My customer asked about TsCLKOUT jitter spec when internal 33MHz oscillator is selected.

Do you have any information on this?

Best regards,

over 7 years ago

0 NOBUO FUJIHARA over 7 years ago

TI__Genius 9355 points

Sorry,
TsCLKOUT --> TxCLKOUT

Best regards,

0 Palaniappan Manickam over 7 years ago in reply to NOBUO FUJIHARA

TI__Genius 10475 points

Hello,
This is not something we can spec for.

What is it that they are trying to do with the TXCLKOUT based on the internal oscillator? Please keep in mind this is only an optional clock output based on internal clock when the input stream is lost so this is meant for only debug situations.

Also keep in mind that the internal oscillator frequency can have a wide variation of +/-30%.

0 NOBUO FUJIHARA over 7 years ago in reply to Palaniappan Manickam

TI__Genius 9355 points

Hi,
I should have explained background of question.
Customer is evaluating EMI of DS90UB928 with test mode (stand alone condition), and would like to know jitter effects to spurious.
No intention to use internal oscillator for actual use.
Best regards,

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DS90UB928Q-Q1: Jitter when internal oscillator is used