There are a few specs in the datsheet for 3Gpp EVM for 20MHz BW, but what if the system is required to support 100MHz BW and 256QAM or 1024QAM ?
If this is possible?, if so could you give figure for Tx SNR, RX SNR or EVM dB at 100MHz BW.
AD9371 is designed to support upto 100MHz bandwidth. We do not have any other test data other than that is published in datasheet.
We recommend you to use one of our Evaluation board and verify for your specific requirement.
We could generate LTE-TDD DL waveform for 64QAM and we look for 256QAM waveform in future.
but EVM is poor (3.12%) at 10dB RF attenuation. Request to share LTE-TDD DL waveforms if any.
What is the CFR of your waveform .Are you using clipping.?
One thing that can impact EVM is reference clock 30.72 MHz. This needs to be supplied external for Evaluation board.
We are also planning to use 64-QAM modulation in our OFDM waveform with channel spacing of 1MHz.
Our maximum data-rate is 150Mbps with channel spacing of 125KHz to 1MHz.
We are planning to use your AD9375 Transceiver for our transmitter with DPD to reduce the high PAPR required for our OFDM waveform typically 10dB.
We are planning to use wide-band GAN power amplifier for our application where our frequency band is 1.5 to 2.5GHz where we will use typically 30MHz for our data.
Our output power requirement is only 15W whereas without DPD our OFDM waveform requires power amplifier peak power of 150W(10dB more than operation for PAPR).
This is not efficient way, So we are thinking to use your AD9375 transmitter with DPD for our application.
1) Now how much PAPR will be approximately reduced for our waveform by using DPD?
2) What is the approximate power amplifier peak power requirement after DPD implementation using your transceiver?
This is not for any wireless standard and this is a proprietary standard communication.
Discussed in below link
AD9375 PAPR reduction for OFDM waveform with GAN power amplifier
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