The highly integrated CMX838 Family Radio Processor includes subaudio, audio, and synthesizer functions to serve as the core engine for low cost, high performance FRS, PMR446, and GMRS radio designs. Its flexibility supports both simple and advanced multi-channel radios without cost penalties. Integrated Tx voltage reference and baseband clock generation circuits eliminate the need for external components. The CMX838's features directly supports advanced end product functions such as: group calling, scanning, automatic scanner response tone setup, and Tone CloningTM. By using the CMX838 one global radio design can support multiple standards and markets. Controlled via a serial interface (C-BUS) the Family Radio Processor operates from a 3V to 5V supply and is available in 28-pin TSSOP (CMX838E1) and 28-pin SOIC (CMX838D1) packages. 2003 CML Microsystems Plc