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Hi Rohit, I am curious about how to set up our device to realize 28.5 dBm at 2000MHz. Can you share the test detail of how to obtain this value in real case. Thanks.
The TRF37C73 device cannot achieve output power of 28.5dBm, but only 16.5dBm.
However, the output 3rd order intercept (OIP3) is specified at 28.5 dBm. It is important to note that the OIP3 is an extrapolated power number for 3rd order intermodulation distortion (IMD3), and practically such high power levels cannot be achieved by the device.
For calculating the OIP3, we usually measure the IMD3 by setting two fundamental tones at lower power levels (say -10dBm) that are equally spaced apart by +/-1 to 100kHz with respect to a center frequency (say 2GHz). If the amplifier were to be perfectly linear without any output power limitation, then the OIP3 simply means the output power level at which the IMD3 products would equal the fundamental power level. Practically, all amplifiers will become non-linear as you keep increasing the power levels, and they would start showing gain compression issues which is better captured using the OP1dB compression point.