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File name RGPA05(1.85-1.91 GHz GaAs pHEMT ).pdf

RFIC Solutions Inc. Power Amplifier Description . Preliminary Datasheet RGPA05 Functional Diagram . The RGPA05 is a 1.85 to 1.91 GHz high efficiency GaAs Enhancement mode psuedomorphic high electron mobility transistor MMIC power stage. This power stage can be preceded by a Driver stage to realize a complete amplifier. It has been designed specially for use in PCS band. The part is matched at the input and output so no additional RF matching components are required. The power stage exhibits unparalleled linearity and efficiency for this Band. The part is biased by a single 3.3 V Supply . Supply Biasing Ckt C F R Matching Matching Applications. · CDMA PCS Handsets · Spread-Spectrum Systems · Portable Battery-Powered Equipment . Key Features. . · Low Cost · Linear Gain around 14.8 dB · Maximum Linear Output Power in the range of 26 dBm · High Performance Electrical Specifications. . Conditions: Vcc = 3.3 V & TA=25 0C Parameter Frequency Maximum Linear Power Output Gain Input Return Loss Output Return Loss ACPR Supply Voltage Supply Current Min 1.850 14 Typical 26 14.5 12 12 -40 @ Po 3.3 70 Max 1.910 14.8 Units GHz dBm dB dB dB dBc Volt mA March 12, 2007 www.rficsolutions.com Page 1 of 2 RFIC Solutions Inc. Proprietary Information Data subject to change without Notice RFIC Solutions Inc. Power Amplifier Simulated results. Small signal gain Vs Freq 28 26 24 22 Preliminary Datasheet RGPA05 . Pout Vs Pin 40 20 d (S2 ) B ( ,1) Pout 4 0 .9 G 5 0 .0 G 5 0 .1 G 5 0 .2 G 5 0 .3 G 5 0 .4 G 5 0 .5 G 5 0 .6 G 5 0 .7 G 5 0 .8 G 5 0 .9 G 20 18 16 14 12 10 0 -20 -40 -60 -40 -20 0 20 40 RFfreq pin Input Return Loss Vs Power Output Return Loss Vs Power Layout. March 12, 2007 www.rficsolutions.com Page 2 of 2 RFIC Solutions Inc. Proprietary Information Data subject to change without Notice