VinMA

AD9910's necessary pins to make its external control

Discussion created by VinMA on Feb 21, 2018
Latest reply on Mar 9, 2018 by VinMA

Hi,

 

I'm a student and I'm working on my first project with a DDS. My project consists in making the communication between the DDS and a MBED controller via SPI. The pins I have been using to try it are:

 

AT THE U5 IO HEADER:

-IO_RESET

-CSB

-SCLK

-SDO

-SDIO

 

AT THE U6 IO HEADER:

-IO_UPDATE

 

AT THE U9 IO HEADER:

-EXT_PWR_DWN (grounded)

 

About the IO_UPDATE and the EXT_PWR_DWN I didn't understand their behavior. Can Someone help me?

 

 Thanks for the attention,

Vinicius

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