RF Micro Devices claims its RF3133 is the smallest available (7 x 10 mm footprint) quad-band power amplifier (PA) module with integrated power control circuitry. It extends the PowerStar family of PA modules, which feature power control based on collector control. All PowerStar PA modules eliminate the need for directional couplers, detector diodes, power control ASICs and other power control circuitry. The RF3133 is designed for use as the final RF amplifier in single and multiband GSM, DCS and PCS handheld digital cellular equipment in the 880 to 915 MHz, 1710 to 1785 MHz and 1850 to 1910 MHz bands. It includes a fully integrated silicon CMOS power control loop that meets all spectrum and burst-timing requirements, with 50 y input and output terminals. It also includes software tools to instantly calculate ramp profiles, which shortens development time. The multi-band RF3133 is offered as part of the Polaris Total Radio transceiver, which performs transmit and receive functions of a wireless handset's radio section.
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