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CMX998 Cartesian Feedback Loop (CFBL) Transmitter Product Introduction

21st December 2011
ES Admin
The CMX998 is a Cartesian Feedback Loop (CFBL) Transmitter which improves the efficiency and linearity of transmitters for non-constant envelope modulation systems. The CMX998 is an integrated solution for a linear based Cartesian Feedback Loop (CFBL) transmitter. Acting as a direct conversion quadrature mixer from I and Q to RF output, it provides the capability to linearise the Power Amplifier (PA) via feedback from the PA's output. Included are forward and feedback paths; local oscillator circuitry including loop phase control; an instability detector and uncommitted op-amps for input signal conditioning.

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