AWR1843BOOST: About the clock production circuit of AWR1843

Hiroyuki Kanematu

Part Number: AWR1843BOOST
Other Parts Discussed in Thread: AWR1843,

You connect the crystal unit and AWR1843 with AWR1843 Boost, right?

The oscillation circuit is composed of Y1, C15, and C9, which are the components of the AWR1843 Boost. Where do the RF, RD, and inverter shown in the figure below correspond to the inside of the AWR1843?

over 3 years ago

0 Hiroyuki Kanematu over 3 years ago

Expert 2975 points

(https://edn.itmedia.co.jp/edn/articles/1103/01/news118.html)

0 Cesar over 3 years ago in reply to Hiroyuki Kanematu

TI__Guru*** 149124 points

Please give us some time to review your question.

Will get back to you by mid next week

thank you

Cesar

0 aozer over 3 years ago

TI__Mastermind 30765 points

Hello,

Yes, you need a 40MHz XTAL. I am not sure where that diagram comes from, but you do not need any external inverters or resistors. Please refer to the schematic for the AWR1843BOOST. You only need to have the XTAL and the load caps.

https://www.ti.com/tool/AWR1843BOOST#design-files

The crystal should meet the specifications in section 8.10.2 of the datasheet.

https://www.ti.com/lit/ds/symlink/awr1843.pdf

Regards,

Adrian

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AWR1843BOOST: About the clock production circuit of AWR1843