RF3802 Proposed 0 GaAs HBT PRE-DRIVER AMPLIFIER Typical Applications • GaAs HBT Pre-Driver for Basestation Amplifiers • Class AB Operation for GSM/EDGE/CDMA • Power Amplifier Stage for Commercial Wireless Transmitter Applications Infrastructure Product Description The RF3802 is specifically designed for wireless infrastructure applications. Using a highly reliable GaAs HBT fabrication process, this high-performance dual-stage amplifier achieves high output power over a broad frequency range. The RF3802 amplifier also provides excellent efficiency and thermal stability through the use of a thermally-enhanced surface-mount AlN package. Ease of integration is accomplished through the incorporation of an optimized evaluation board design provided to achieve proper 50Ω operation. Various evaluation board bias configurations are available to address a broad range of wireless infrastructure applications: • AMPS/GSM850/EDGE850 • GSM900/EDGE900 • IS-95/CDMA2000/AMPS -A- Pin 1 0.005 A 0.200 REF 0.180 REF 0.198 0.236 Dimensions in inches. 0.156 9 GaAs HBT GaAs MESFET Si Bi-CMOS SiGe HBT Si CMOS InGaP/HBT GaN HEMT SiGe Bi-CMOS 0.025 R.008 0.050 TYP 0.050 REF 0.0780 MAX 0.028 TYP 0.020 7 PL Optimum Technology Matching® Applied Si BJT 0.0025 0.024 Shaded circle designates pin 1 location. Package Style: AlN Features • 5W Output Power • High Linearity • 35% Power-Added Efficiency VCC1 1 Bias Circuit 8 RF OUT/VCC2 • Broadband Platform Design Approach VREF 2 7 RF OUT/VCC2 RF IN 3 6 RF OUT/VCC2 V_BIAS 4 5 RF OUT/VCC2 PACKAGE BASE GND Functional Block Diagram Rev A1 040927 • AlN Packaging Ordering Information RF3802 GaAs HBT Pre-Driver Amplifier RF3802PCBA-410 Fully Assembled Evaluation Board - GSM850 RF3802PCBA-411 Fully Assembled Evaluation Board - GSM900 RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 4-631 RF3802 Proposed Please contact RF Micro Devices Applications Engineering at (336) 678-5570 for more information. 4-632 Rev A1 040927