CX77144

DATA SHEET CX77144: Power ee Amplifier Module for CDMA (887–925 MHz) t 4U . m o c t a Wireless Local Loop (WLL) .D w w wFeatures Low voltage positive bias CDMA for Japan supply - 3.2 V to 4.2 V Low VREF - 2.85 V, nominal Good linearity High efficiency Large dynamic range 10-pin package - 4 mm x 4 mm x 1.5 mm Power down control Low power–state control InGaP CDMA2000 / IS95 Applications h S a Description The CX77144 Power Amplifier Module (PAM) is a fully matched, 10-pin surface mount module developed for cellular handset applications utilizing Code Division Multiple Access (CDMA) and Wireless Local Loop (WLL). This small and efficient power amplifier module packs a full 887–925 MHz bandwidth coverage into a single compact package. The device meets the stringent IS95 requirements up 27.5 dBm output power and up to 27 dBm for CDMA2000. A low current digital pin (VCONT) provides improved efficiency for the low RF power range of operation. The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active circuitry in the module. The MMIC contains on-board bias circuitry, as well as input and interstage matching circuits. The output match is realized off-chip and within the module package to optimize efficiency and power performance into a 50 Ω load. This device is manufactured with Skyworks’ GaAs Heterojunction Bipolar Transistor (HBT) process that provides for all positive voltage DC supply operation while maint...