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Non-determined AD9371 output power changes.

Question asked by on Jan 19, 2017
Latest reply on Jan 31, 2017 by sripad

Hello, dear colleagues!

The trouble is output power instability at ADRV9371-W/PCBZ  TX output:

When we switch on the evaluation board, the first 2-3 minutes output power of transmitter equal 2.5 dBm, but after some time – around 3-4 minutes, when board heat up, the output power become decrease, and after then – increase. The swing of output power may amount to – 9 dBm (min) or  1 dBm (max).

detailed description in attach. 


Did anybody face similar challenge?

I will be grateful for a help.