CMX998 Cartesian Feedback Loop Transmitter

CML Micro CMX998 Cartesian Feedback Loop Transmitter is designed to improve the efficiency and linearity of transmitters for non-constant envelope modulation systems. Acting as a direct conversion quadrature mixer from I and Q to RF output, the CMX998 provides the capability to linearize the Power Amplifier (PA) via feedback from the PA output. The CMX998 features forward and feedback paths, local oscillator circuitry including loop phase control, an integrated instability detector, and uncommitted op-amps for input signal conditioning.