SKY77196

• Low voltage positive bias supply: 3.2 V to 4.2 V
• Good linearity
• High efficiency: 40% @ 28.5 dBm
• Large dynamic range
• 14-pad package: 5 x 4 x 0.85 mm
• Power down control
• InGaP
• Supports low collector voltage operation
• Digital Enable
• No VREF required
• CMOS compatible control signals
• Integrated directional coupler

Dual-Band PA Module for WCDMA / HSDPA Band II (1850-1910 MHz) and Band V (824-849 MHz)

The SKY77196 Power Amplifier Module (PAM) is a fully matched, 14-pad, surface mount moduledeveloped for Wideband Code Division Multiple Access (WCDMA) applications. This small and efficientmodule packs full WCDMA Band II and Band V coverage into a single compact package. TheSKY77196 meets the stringent spectral linearity requirements of WCDMA transmission, with highpower added efficiency for power output to 28.5 dBm (Band II) and 28 dBm (Band V). The SKY77196meets the stringent spectral linearity requirements of High Speed Downlink Packet Access (HSDPA)data transmission with high power added efficiency. A directional coupler is integrated into themodule thus eliminating the need for any external coupler.

The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) SKY77196 contains all activecircuitry in the module. The MMIC contains on-board bias circuitry, as well as input and interstagematching circuits. Output match into a 50-ohm load is realized off-chip within the module package tooptimize efficiency and power performance.

The SKY77196 PAM is manufactured with Skyworks' InGaP GaAs Heterojunction Bipolar Transistor(HBT) BiFET process that provides for all positive voltage DC supply operation while maintaining highefficiency and good linearity. No VREF voltage is required. Power down is accomplished by setting thevoltage on VENABLE to zero volts. No external supply side switch is needed as typical "off" leakage of SKY77196 is a few microamperes with full primary voltage supplied from the battery.