The DE705 Doherty Excelerator is a complete RF Front-End evaluation platform for FDD operation of LTE Bands 14 and 28. The platform has selected components of universal footprint to utilize the same PCB dimensions for all sub 1 GHz LTE bands.
The platform features a single channel transmitter and a single channel receiver with a swappable ceramic duplexer that will allow configuration for band 14 or band 28. Included in the TX circuitry is a high performance 2-stage LDMOS PA implemented as an asymmetrical Doherty amplifier for optimum TX efficiency and linearity performance. An onboard bias generation IC and an Advanced Doherty Alignment Module (ADAM) IC with SW control provide for additional levels of configuration.