Dual Band Power Amplifier

www.DataSheet4U.com ® ISL3992 Data Sheet August 2003 FN8079 Dual Band Power Amplifier The ISL3992 is a Dual Band monolithic GaAs Power Amplifier designed to operate in both the ISM and U-NII Bands as part of the 2.4/5.2GHz Worldwide IEEE802.11 a/b/g compliant radio chipset. It features two low voltage single supply stages which cascaded deliver 21dBm (Typ) output power for ISM, and three stages which deliver 16 dBm (Typ) for U-NII OFDM applications. In addition, the device includes a Dual Band detector which is accurate over a 15dB dynamic range within (±)1dB, which can be used to implement an accurate ALC function. The ISL3992 is housed in a 24 lead QFN package. Features • Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.6V • Output Power . . . . . . . . . . . . . . . . . . . . . . . . 21dBm (Typ) • Power Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 28dB (Typ) • Detector Linear Input Power Range. . . . . . . . . . . . . .15dB • Detector Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1dB • QFN Package: - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline - Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile Applications • Systems Targeting IEEE802.11a/b/g WLANs • Wireless Local Area Networks (WLAN) PKG. DWG. # Ordering Information PART NUMBER ISL3992IR ISL3992IR-TK TEMP RANGE (oC) -40 to 85 -40 to 85 PACKAGE 24 Ld. QFN • PCMCIA Wireless Transceivers • ISM Systems Including Automatic Level Control (ALC) • TDMA Packet Protocol Radios L24.4x4 Tape and Reel (1000 units) Pinout ISL3992 (QFN) TOP VIEW 2GHz_DET_OUT 14 5GHz_RF_OUT 5GHz_RF_OUT Simplified Block Diagram +3.3V 2 GHz_RF_IN 2GHz_BIAS 2GHz_DET_OUT PEAK DETECTOR 5GHz_RF_IN 5GHz_RF_OUT 2GHz_RF_OUT GND GND BIAS 5GHz_DET_OUT 19 +3.3V 20 +3.3V 21 GND 22 5GHz_RF_IN 23 GND 24 18 17 16 15 13 12 GND 11 2GHz_RF_OUT 10 2GHz_RF_OUT 9 GND 8 +3.3V 7 +3.3V 5GHz_BIAS 5GHz_DET_OUT BIAS 1 PEAK DETECTOR GND 2 5GHz_BIAS 3 2GHz_BIAS 4 GND 5 2GHz_RF_IN 6 GND 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. PRISM and design is a trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003. All Rights Reserved All other trademarks mentioned are the property of their respective owners. GND