ADS131A02: oscillator can't work

Ivy Jin

Part Number: ADS131A02

Hi team,

My customer use ADS131A02 in their project, and occasionally, the oscillator does not work.

The customer attempt to remove C155 and C158 or change them to 30pF. However, the crystal will still not work occasionally.

For this issue, could you please help give some suggestions?

Appreciate for your help!

Regards,

Ivy

over 1 year ago

0 Tom Hendrick over 1 year ago

TI__Guru**** 168605 points

Hi Ivy,

Can you provide the part number of the crystal being used with the ADS131A02 in this application?

0 Ivy Jin over 1 year ago in reply to Tom Hendrick

TI__Intellectual 2355 points

Hi Tom,

Sure, I will send the crystal's datasheet by email.

Thanks.

Regards,

Ivy

0 Tom Hendrick over 1 year ago in reply to Ivy Jin

TI__Guru**** 168605 points

Thank you!

We will look at that and get back to you shortly.

+1 Tom Hendrick over 1 year ago in reply to Tom Hendrick

TI__Guru**** 168605 points

Hi Ivy,

Have you tried any of the recommended crystals listed in the ADS131A02 datasheet yet? The datasheet you sent over list a 200pF load capacitance which is quite high. Is that by chance a typo in their datasheet?

0 Ivy Jin over 1 year ago in reply to Tom Hendrick

TI__Intellectual 2355 points

Hi Tom,

I checked with the customer, this is a typo and the CL is 20pF.

Thanks.

Regards,

Ivy

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ADS131A02: oscillator can't work