MIMO Transceiver with AFE76xx for LTE and 5G Wireless Radio (Rev. A)

ABSTRACT In this application report, the implementation and performance of a radio transceiver suitable for multiple-input multiple-output (MIMO) wireless communications will be presented. AFE76xx is the main device used for the transceiver design. This device integrates 4 analog-to-digital converters (ADCs), 4 digital-to-analog converters (DACs) and a phase-locked loop (PLL) for sampling clock generation. The main advantage of this MIMO transceiver implementation is the high level of integration, which makes it easier to expand to larger antenna arrays via synchronization of multiple AFE76xx devices. Also the direct RF-sampling based data converters eliminate common analog impairments in radio transceiver design such as local oscillator (LO) leakage and sideband image.