SPI data rate of SDP-S connected to ADF5610 PLL

rsturdivant on Oct 2, 2021

What is the clock rate of the SPI control from the SDP-S to the ADF5610 PLL.

I have the ADF5610 eval board and the SDP-S connected to it. I need to detect the SPI signals going to the ADF5610. I can't find any information in the ADF5610 eval board on the SPI data rate.

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kieranb
Oct 4, 2021 +1 verified
Hi,

On the ADF5610 evaluation software, the SPI clock speed has been set to 500kHz.

Kieran
kieranb
May 6, 2022 in reply to rsturdivant +1 verified
Yes SEN will remain high when no SPI writes are being performed. It only goes low during SPI write operation as it frames the data sent to the part.

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+1 kieranb

on Oct 4, 2021 7:46 AM
Hi,

On the ADF5610 evaluation software, the SPI clock speed has been set to 500kHz.

Kieran
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0 rsturdivant on Apr 26, 2022 7:25 PM in reply to kieranb

At the end of the SPI write of all the registers, should keep SEN high ... for ever? Currently, our microcontroller code keeps SEN high after the ADF5610 is programmed.
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+1 kieranb

on May 6, 2022 7:53 AM in reply to rsturdivant
Yes SEN will remain high when no SPI writes are being performed. It only goes low during SPI write operation as it frames the data sent to the part.
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+1 kieranb

on May 6, 2022 7:53 AM in reply to rsturdivant
Yes SEN will remain high when no SPI writes are being performed. It only goes low during SPI write operation as it frames the data sent to the part.
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