news digest ♦ Power Electronics
Skyworks unveils first stand- alone products for 3G and LTE
The company’s new gallium nitride detectors incorporate a high off-state impedance transceiver and minimise loading other detectors connected to the input line.
Skyworks has increased its product portfolio by adding high dynamic range power detectors for smart phones and datacard
standby and talk times, and their high off-state impedance level is particularly beneficial for today’s demanding, high-end 3G smart phones.
“We are delighted to once again be at the forefront of technology innovation,” said Gregory L. Waters, executive vice president and general manager of front-end solutions at Skyworks. “Skyworks’ new power detectors are highly compatible with other solutions from our portfolio and allow us to offer our customers a full end-to-end solution for smart phones and data cards.”
The SKY77002 is a stand-alone, high dynamic range power detector designed for use in smart phones and data cards in conjunction with Skyworks’ power amplifiers in 3G and LTE applications. The detector is manufactured with Skyworks’ GaN HBT process offering state-of-the- art reliability, temperature stability and ruggedness.
The SKY77002 detector circuit technology is optimally aligned for transceivers that require external detection for power control. Exceptional temperature and voltage compensation maintains accuracy over extreme operating conditions.
The detector presents high off-state impedance to the transceiver to minimise loading other detectors connected to the input line. The SKY77002 is packaged in the quad flat no-lead package and is fully compliant with current restriction of hazardous substances requirements.
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Skyworks’ RF detectors address the market’s need for small, stand-alone solutions that are compatible with various baseband architectures and accommodate multiple 3G and LTE band combinations.
In addition, these devices have been designed to work with the SKY7770X and SKY7772X series of 3G and 4G power amplifiers to expand the compatibility of the integrated daisy chain coupler for the majority of basebands and transceivers.
The detectors’ small size (1.2 mm x 1.5 mm) minimises board space requirements, while their higher dynamic range increases power control and improves total radiated power performance. Their low current consumption enables both longer
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www.compoundsemiconductor.net July 2011 Skyworks’ new RF detectors are currently available.
Cree’s 1200V SiC Schottky diodes offer more than value for money
The firm is looking to develop the next generation of power electronics and offer design engineers silicon carbide devices which have zero reverse recovery loss, temperature-independent switching losses and higher frequency operation.
Cree has revealed a new family of seven 1200V Z-Rec SiC Schottky diodes optimised for price and performance and available in a range of amperages and packages.
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