Date: 20/02/2009

LTE power amplifiers and FEMs for 4G handsets & PC cards

Skyworks Solutions introduced the new family of power amplifiers and front-end modules (FEM) for long-term evolution (LTE) applications. LTE has emerged as the dominant 4G standard with all major handset OEMs, infrastructure suppliers, and operators across the globe committed to this technology.
This multi-band and multi-mode family of products, which now includes two new PA modules and four new FEMs, supports 13 frequency bands and provides complete and flexible set of options for manufacturers developing and building 4G-enabled handsets, infrastructure base-stations, wireless PC cards, and a variety of other embedded solutions.




1. The portfolio includes the PA modules supporting LTE-FDD for the United States (the SKY77449 and SKY77453) and LTE-TDD for China (the SKY77441); and the LTE front-end module for band VII.
2. The SKY77455, SKY77456, SKY77457 and SKY77458, compact front-end modules that support bands I, IV/X, V/VI and VIII, respectively, are matched and compliant for LTE, as well as HSDPA and WCDMA standards.
3. These (SKY77455, SKY77456, SKY77457 and SKY77458) FEMs integrate the PA, inter-stage filter, input/output matching, power detection, and duplexer functionality in a 4 x 7 mm form factor.
4. The SKY77449 for Bands XIII and XIV, and the SKY77453 for Bands XII and XVII, are both fully matched PA modules developed for 4G LTE/EUTRAN standards.
5. They (SKY77449, SKY77453) integrate active RF circuitry, including the input, inter-stage and output matching circuits and power detector functionality within a single 4 x 4 x 0.85 mm low-profile package.
6. The SKY77445 PA module for Band VII and the SKY77441 FEM for Bands 38 and 40 were introduced in 2008 and complete this newly expanded LTE product family.

Using the indium gallium phosphide (InGaP) bipolar field effect transistor (BiFET) design, which provides bias and detection architecture implementation, and Skyworks Green packaging solutions, the family also supports low-operating voltage down to 3V with high power added efficiency (PAE), high reliability and quality. The portfolio also delivers high linear power under quadrature phase-shift keying (QPSK), 16 quadrature amplitude modulations (QAM), and wideband code division multiple access (WCDMA) modulation, with up to 20 megahertz (MHz) in bandwidth and partial or full resource block allocation.

Availability: Samples of all new devices are currently available, with volume production scheduled to begin this year.

For more information visit www.skyworksinc.com