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USB low-full-high speed peripherals Forum Discussions

Saiwai11511
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First reply posted First question asked Welcome!

Hello,

CY7C68013A-56BAXC's datasheet P26 , Table 11.

XTALIN

"It is also correct to drive XTALIN with an external 24-MHz square wave derived from another clock source. When driving from an external source, the driving signal should be a 3.3-V square wave."

What are the details of the input  clock specifications? Ex. Accuracy

Regards,

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MallikaK_22
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250 solutions authored 500 replies posted 250 replies posted

Hi,

FX2LP should be clocked at 24MHz  +/- 100ppm tolerance. Please let me know if you have other questions.

Regards,

Mallika

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MallikaK_22
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250 solutions authored 500 replies posted 250 replies posted

Hi,

FX2LP should be clocked at 24MHz  +/- 100ppm tolerance. Please let me know if you have other questions.

Regards,

Mallika

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Saiwai11511
Level 1
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First reply posted First question asked Welcome!

Hello, Mallika.

Thank you for your answer.

 Please let me ask an additional question.

Are there any other specifications required other than accuracy?

Ex. FX3 Input Clock Specification

4b599932-76cf-4b03-8a89-398970e25229.jpg

Also, do you have a recommended part number?

Regards,

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MallikaK_22
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250 solutions authored 500 replies posted 250 replies posted

Hi,

Please check Pg 10, section 5 in the following App Note.

Regards,

Mallika

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Saiwai11511
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First reply posted First question asked Welcome!

Hello, Mallika.

Thank you for your answer.

But this is the details of the crystal oscillator.

I would like to know the details of the input square wave specifications.

Regards,

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MallikaK_22
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250 solutions authored 500 replies posted 250 replies posted

Hi,

There are no other specifics from our end to be followed apart from the ones told above.

Regards,

Mallika

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