I have a very specific question about AD9361 output power
Basically, we are attempting to estimate the approximate output power that we can expect from the AD9361 transmitter for a DVB-T modulated signal within the 4.4-5.0GHz frequency range. (AD9361 LO freq = 4.4-5.0GHz). Our usage info is listed below…
Modulation: DVB-T, OFDM (1705 carriers, 15dB max PAR, up to 64QAM constellation type)
Channel BW: up to 8MHz
AD9361 Attenuation Setting: 0dB
Frequency Range: 4.4-5.0GHz
In the data sheet, they list the max output power for the transmitters in the 5.5GHz band as +6.5dBm with a CW signal. Based on that number, I would estimate we could obtain approximately a -8.5dBm RMS output for a 15dB PAR at 5.5GHz with a 0dB attenuator setting. (6.5 max – 15dB PAR = -8.5dBm RMS). I assume the output power would be marginally higher for the 4.4-5.0GHz band. So I estimate we should be able to get approximately a -8dBm RMS output power for our DVB-T signal within the 4.4-5.0GHz band. Does that agree with Analog’s estimated power?