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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.5.3 WCDMA Power Amplifier
UMTS850/UMTS1900 Power Amplifier Module
The AWT6321R addresses the demand for increased integration in dual-band in dual-band handsets
for North American CDMA network deployments.The small footprint 3mmx5mmx1mm surface mount
RoHS compliant pckage contains independent RF PA pats to ensure optional performance in both
frequnency bands, while achieving a 25% PCB space savings compared with solutions requiring two
single-band Pas.
The package pin out was chosen enable handset manufacturers to easily route VCC to both power
amplifiers and simplify control with a common VMODE pin. The device is manufactured on an
advanced InGaP HBT MMIC technology offering state-of-the-art reliability, temperatures stability, and
ruggedness.
The AWT6321 is part of ANADIGICS’High-Efficiency-at-Low-Power(HELP)family of CDMA power
amplifiers, which deliver low quiescent currents and significantly greater efficiency without a costly
external DAC or DC-DC converter
Figure. 3.5.3 WCDMA Dual PAM
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