Low Noise Amplifier For 2.3 To 2.5 Ghz Applications Using The Sige Bfp640f Tranistor

1 Low Noise Amplifier for 2.3 to 2.5 GHz Applications using the SiGe BFP640F Tranistor Applications • 2.4 GHz ISM band (Bluetooth, Cordless Phone, Wireless LAN, ZigBee etc.) • 2.33 GHz “SDARS” Satellite Radio (e.g. “XM Radio”) Overview • BFP640F in TSFP-4 package is evaluated for 2.3 - 2.5 GHz LNA application. Note TSFP-4 package is only 1.4 x 1.2 x 0.55 mm high. Printed Circuit Board used is Infineon Part Number 640F-021904 Rev A. Standard FR4 material is used in a three-layer PCB. Please refer to cross-sectional diagram below. • Low-cost, standard "0402" case-size SMT passive components are used throughout. Please refer to schematic and Bill Of Material. The LNA is unconditionally stable from 5 MHz to 6 GHz. • Total PCB area used for the single LNA stage is < 40 mm². Total Parts count, including the BFP640 Transistor is 12.
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