The CMX998 Cartesian feedback loop IC from CML Microcircuits is an upgrade of the company's integrated solution for transmitter linearisation. The IC is flexible, possessing an RF operating range of 30MHz to 1GHz and is suitable for portable devices. The IC provides all of the building block functions needed to implement a Cartesian feed-back loop transmitter in a two-way radio design, offering the designer flexibility, small size and fast time to market. The device is suitable for multimode software defined radio systems, improving the efficiency and linearity of transmitters and can support a range of linear modulation formats and standards, including TDMA operation, TETRA mobile station power classes up to 3W (Class-3), APCO P25 and TETRA 2 terminals. Other suitable applications include aviation systems, mobile satellite terminals and others using linear modulation schemes. The IC, operates in the range 3 to 3.6V, and is available in a 64pin VQFN package.
