RF9908 Datasheet | RF Micro Devices

Typical Applications - CDMA/FM Cellular Systems - Supports Dual-Mode AMPS/CDMA - Supports Dual-Mode TACS/CDMA - mercial and Consumer Systems - 3-Cell Battery-Operated Systems CDMA/FM UPCONVERTER/BPSK MODULATOR Product Description The RF9908 is a plete upconverter designed for CDMA/FM cellular applications. The IC contains a double-balanced mixer stage and an output buffer amplifier stage. This device may also be used to directly BPSK modulate a carrier. The mixer is a Gilbert cell with emitter degeneration resistors to provide high IP3. The output stage is a class-B, push-pull configuration to reduce the overall current and still provide a good 50 Ω output match. The unit...