Category: Hardware
Product Number: AD9361
"During AD9361 debugging, we encountered the following issue:
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Center frequency: 2142 MHz
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Output: +15 MHz single tone (i.e., RF output at 2157 MHz)
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Observed spurious: At 2097 MHz, approximately -50 dBm, which is exactly at LO - 3×15 MHz = 2097 MHz.
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This spur falls outside our filter passband.
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We also observed that reducing the digital signal level (TX attenuation / digital scaling) significantly improves this spur.
Question: How can we further suppress this spur while maintaining the same output signal power level? Are there any register settings or hardware measures you would recommend?"
