General Description
The RMPA1963 Power Amplifier Module (PAM) is Fairchild’s latest innovation in 50 Ohm matched, surface mount modules targeting US-PCS CDMA/WCDMA/HSDPA and Wireless Local Loop (WLL) applications. Answering the call for ultra-low DC power consumption and extended battery life in portable electronics, the RMPA1963 uses novel proprietary circuitry to dramatically reduce amplifier current at low to medium RF output power levels (< +16 dBm), where the handset most often operates. A simple two-state Vmode control is all that is needed to reduce operating current by more than 50% at 16 dBm output power, and quiescent current (Iccq) by as much as 70% compared to traditional power-saving methods.

FEATUREs
■ 38% CDMA/WCDMA efficiency at +28 dBm Pout
■ 14% CDMA/WCDMA efficiency (85 mA total current) at +16 dBm Pout
■ Meets HSDPA performance requirements
■ Linear operation in low-power mode up to +19 dBm
■ Low quiescent current (Iccq): 25 mA in low-power mode
■ Single positive-supply operation with low power and shutdown modes
    • 3.4V typical Vcc operation
    • Low Vref (2.85V) compatible with advanced handset chipsets
■ Compact Lead-free compliant LCC package – (4.0 X 4.0 x 1.5 mm nominal)
■ Industry standard pinout
■ Internally matched to 50 Ohms and DC blocked RF input/output
■ Meets IS-95/CDMA2000-1XRTT/WCDMA performance requirements