Date: 20/02/2009

WCDMA power amplifiers with integrated directional couplers

Skyworks Solutions introduced a family of single and dual-band WCDMA power amplifiers (PA) for universal mobile telecommunications system (UMTS) applications that integrate the directional coupler, reducing the phone board footprint.
The company's expanded portfolio of front-end solutions now includes five UMTS PAs that support frequency bands I, II, IV, V and VIII, and two dual band PAs that support the most popular band combinations - bands I/VIII and II/V.

Skyworks' Intera portfolio includes the:

1. SKY77186 for Band I: 1920-1980 MHz
2. SKY77187 for Band II: 1850-1910 MHz
3. SKY77188 for Band V, VI: 824-849 MHz
4. SKY77189 for Band VIII: 880-915 MHz
5. SKY77191 for Band IV, IX, X: 1710-1785 MHz

These five 3 x 3 mm solutions are 10-pad surface mount modules. These devices deliver notable talk-time advantages. They also meet stringent spectral linearity requirements of high-speed downlink packet access (HSDPA) data transmission with high PAE.

The two dual band power amplifers are,

1. SKY77195 for Bands I and VIII: 1920-1980 MHz and 880-915 MHz
2. SKY77196 for Bands II and V: 1850-1910 MHz and 824-849 MHz

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. Output match into a 50-ohm load is realized off-chip within the module package to optimize efficiency and power performance. The PA modules are manufactured with indium gallium phosphide (InGaP) hetero-junction bipolar transistor (HBT) bipolar field effect transistor (BiFET) process that provides for all positive voltage DC supply operation while maintaining high efficiency and good linearity.

Availability: Now in samples

For more information visit Skyworks' Web site at: www.skyworksinc.com