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Eliminating AD9361 TX Carrier Output DC Output?

Question asked by andrew.dickson on Jan 7, 2015
Latest reply on Jan 9, 2015 by rgetz

Hi,

 

I am currently using an FMCOMM3/Zedboard platform to Transmit a modulated signal at max power (zero attenuation), but when I stop sending I/Q modulation data I would like to minimize the TX output carrier to an absolute minimum without actually having to disable the TX chain or ramp up the TX attenuation?

 

Currently I send all zero's for I and Q data from the FPGA which reduces the carrier power.

 

Are there any techniques that I can use to eliminate the carrier (dc) component by using the data interface from the FPGA, thus removing processor/SPI control?

 

Kind Regards,

Andy

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