AM62A7: Exteranal clock source - schematic review

Dusan Vojinovic

Part Number: AM62A7

Tool/software:

Hello,

I'm using an external 25MHz crysta as a clock source. Attached the related circuit diagramm section.

Please have a look on it if this part meets the recommendation.

Regards,

Dusan

0 Kallikuppa Sreenivasa over 1 year ago

hello Dusan,

Thank you for the query.

We recommend connecting the crystal directly to the SOC pins.

Please share the crystal load value.

Regards,

Sreenivasa

0 Dusan Vojinovic over 1 year ago in reply to Kallikuppa Sreenivasa

Hello Sreenivasa,

the load capacitance is 6 pF. Maybe I've to reduce the on-board capacitance e.g. 10pF instead of 18pF?

I'm using the crystal unit XRCGB25M000F3A00R0.

Regards,

Dusan

0 Kallikuppa Sreenivasa over 1 year ago in reply to Dusan Vojinovic

hello Dusan,

Thank you

For the 6 pF crystal load, considering a pcb capacitance of 4 pF, 8 pF load cap is recommended

2 X 12 PF is series = 6 pF

Regards,

Sreenivasa

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