RMPA1766 Datasheet (data sheet) PDF





RMPA1766 Datasheet, WCDMA Band IV Power Amplifier Module

RMPA1766   RMPA1766  

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PRELIMINARY RMPA1766 i-Lo™ WCDMA Band IV Power Amplifier Module April 2007 RMPA1766 i-Lo™ WCDMA Band IV Power Amplifier Module Features ■ 40% WCDM A efficiency at +28dBm Pout ■ 20% WC DMA efficiency (58mA total current) at tm General Description The RMPA1766 Power Amplifier Module (PAM) is Fairch ild’s latest innovation in 50Ω matc hed, surface mount modules targeting UM TS/WCDMA/HSDPA applications. Answering the call for ultra-low DC power consump tion and extended battery life in porta ble electronics, the RMPA1766 uses nove l proprietary circuitry to dramatically reduce amplifier current at low to me dium RF output power levels (< +16dBm), where the

RMPA1766 Datasheet, WCDMA Band IV Power Amplifier Module

RMPA1766   RMPA1766  
handset most often operates. A simple t wo-state Vmode control is all that is n eeded to reduce operating current by mo re than 60% at 16dBm output power, and quiescent current (Iccq) by as much as 70% compared to traditional power-savin g methods. No additional circuitry, suc h as DC-to-DC converters, are required to achieve this remarkable improvement in amplifier efficiency. Further, the 4 x 4 x 1.0 mm LCC package is pin-comp atible and a drop-in replacement for la st generation 4 x 4 mm PAMs widely used today, minimizing the design time to a pply this performance-enhancing technol ogy. The multi-stage GaAs Microwave Mon olithic Integrated Circuit (MMIC) is ma nufactured using Fairchild RF’s InGaP Heterojunction Bipolar Transistor (HBT ) process. +16dBm Pout ■ Low quiesce nt current (Iccq): 25mA in low-power m ode ■ Meets HSDPA performance require ments ■ Single positive-supply operat ion with low power and shutdown modes – 3.4V typical Vcc operation – Low Vref (2.85V) compatible with advanced h andset chipsets ■ Compact Lead-free c ompliant LCC package – (4.0 x 4.0 x 1 .0mm nominal) ■ Industry standard pin out ■ Internally matched to 50Ω and DC blocked RF input/output Functional Block Diagram (Top View) MMIC Vcc1 1 RF IN GND Vmode Vref 10 Vcc2 INPUT MATCH OUTPUT MATCH BIAS/MODE SWITCH 2 3








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