Telecoms ♦ news digest
The HMC6147ALC5A provides a small signal conversion gain of 13 dB with 25 dBc of image rejection and utilises a low noise amplifier to drive the I/Q mixer where the LO is driven by a x2 multiplier. IF1 and IF2 mixer inputs are provided and an external 90 degree hybrid is needed to select the required sideband. The HMC6147ALC5A I/Q downconverter also features a very low noise figure of less than 3.5 dB and typical input IP3 of 2 dBm.
The I/Q mixer design topology used for the HMC6787ALC5A , HMC6146BLC5A and the HMC6147ALC5A is provide a big advantage because it reduces the need for filtering of the unwanted sidebands.
All three devices are claimed to provide a much smaller alternative to hybrid-style single sideband converter assemblies, and they eliminate the need for wire bonding by allowing the use of surface mount manufacturing techniques.
The HMC6787ALC5A , HMC6146BLC5A and the HMC6147ALC5A are housed in compact, 5 x 5 mm RoHS compliant SMT packages.
Samples and evaluation PC boards for all SMT packaged products are available from stock and can be ordered via the company’s e-commerce site or via direct purchase order.
Anadigics InGaP PAs help
extend Samsung battery-life The firm is shipping production volumes of its AWT6651 ProEficient indium gallium phosphide power amplifier to Samsung Electronics for the Galaxy Music Duos and Chat
Samsung’s Galaxy Music Duos S6012 features a 3-inch touch screen, 850 MHz processor, and 4 GB of storage. The Galaxy Chat B5330 offers a QWERTY keyboard, 3-inch touch screen, and 850 MHz processor. Both phones include Android 4.0 Ice Cream Sandwich operating system.
“Anadigics’ ProEficient and ProEficient-Plus power amplifiers provide the industry’s best combination of efficiency, current consumption, and linearity to help extend battery-life and maintain stable, high throughput 4G connectivity,” says Michael Canonico, senior vice president of Worldwide Sales at Anadigics.
“The selection of the AWT6651 for the Galaxy Music Duos and Chat not only exemplifies the tremendous real-world performance advantages offered by our ProEficient solutions, but also the strength of the relationship that we have forged with Samsung Electronics. We look forward to continued close collaboration with Samsung in the design of next-generation mobile devices that further the user experience,” continues Canonico.
Anadigics’ ProEficient PAs use the company’s exclusive InGaP- Plus technology to achieve outstanding efficiency at high and low power modes to extend 3G and 4G battery-life without the use of a DC-DC converter.
These PAs are also optimised for use with average power tracking (APT) to further increase efficiency and reduce current consumption at medium and low operating powers.
Apart from outstanding efficiency, Anadigics says its ProEficient power amplifiers deliver exceptional linearity to ensure a stable connection for clear voice and high-speed data.
With excellent efficiency in both low and high power modes, the Proeficient PAs have a very low quiescent current to extend battery-life. They come in a compact 3 mm x 3 mm package with internal voltage regulation and integrated DC blocks on the RF ports to reduce PCB space requirements.
Superb linearity helps to maintain stable, high-throughput 3G / 4G connections. Finally, RF matching is optimised for output power, efficiency, and linearity in a 50-Ohm system.
RFMD reveals GaAs entry solutions for 2G & 3G
smartphones The firm’s newest products include GaAs (gallium arsenide) - and silicon-based power amplifiers and transmit modules
RF Micro Devices, Inc. has expanded its entry solutions product portfolio to include multiple new solutions for 2G and
March 2013
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