TMDSCNCD263P: Spec for external crystal

Shota Mago

Part Number: TMDSCNCD263P
Other Parts Discussed in Thread: AM263P4,

Hi team,

The AM263P4 specifies requirement for resonance frequency range of crystal as ±50ppm.

Meanwhile, the TMDSCNCD263P uses ABM10W-25.0000MHZ-8-K1Z-T3 as crystal whose frequency tolerance is ±10ppm, but its frequency stability is ±50ppm. As total, it seems violates requirement of AM263P4.

Why is the ABM10W-25.0000MHZ-8-K1Z-T3 okay?

Best regards,
Shota Mago

over 1 year ago

0 Shota Mago over 1 year ago

TI__Expert 8110 points

Hi team,

Could you please reply above question?

Best regards,

Shota Mago

0 Shota Mago over 1 year ago in reply to Shota Mago

TI__Expert 8110 points

Hi team,

19 days past since original post.

Could you please reply for the question ASAP? I will have meeting with the customer tomorrow.

Best regards,

Shota Mago

+1 Hideaki Matsumoto over 1 year ago in reply to Shota Mago

TI__Genius 9050 points

Hi Mago-san,

I posted the same inquiry on another thread, and got the answer.

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1306723/am263p4-q1-xtal-used-on-am263p-evaluation-board/4978625#4978625

That is just outside the +/-50ppm operating point we require from our datasheet.

Most likely, this specific ABM10W crystal was selected due to availability at the time, but I think we should change this in our EVM BOM to align with the datasheet. Thank you for highlighting that.

Please follow and all datasheet device requirements.

Regards,
Hideaki

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TMDSCNCD263P: Spec for external crystal