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EETE NOV 2013

Follow-us on @EETimesEurope Transistors target UHF TV power amplifiers to broadens RF portfolio Infineon Technologies has introduced 50 V LDMOS transistors designed for use in UHF TV broadcast transmitters, including one device that claims to provide the highest peak power output available for this application. The higher power output across the entire 470 – 806 MHz TV broadcast band gives amplifier designers the option to use fewer transistors to achieve target output power, which translates to cost savings due to lower component count and higher reliability as a result of simpler design. The high power PTVA047002EV has a rated power output of 135 W average, which is eight percent greater than other available devices, with a DVB-T (8k OFDM) signal, and 17.5 dB gain. For a broadcast amplifier design of 12 KW, the increased power can eliminate up to 20 RF power transistors representing a reduction in total system cost while increasing reliability due to simpler, lower component count design. The lower power PTVA042502EC and PTVA042502FC transistors provide 55 W average output power and 18.5 dB gain with a DVB-T (8k OFDM) signal, which makes them well-suited for applications such as gap fillers. Excellent efficiency, typically 26 percent at 500 MHz, reduces heat output. The efficiency is complemented by low thermal resistance (Rth 0.20 degree C/ Watt) of the package. Infineon Technologies AG www.infineon.com/rfpower Residential gateway combines xDSL and LTE to aggregate 200Mbps of data throughput Lantiq and Netgem have jointly announced the Hybridge residential gateway, claimed to be the world’s first combined xDSL and LTE unit, and able to support aggregated bandwidths reaching up to 200 Mbps at home. The high-end VDSL gateway includes the Lantiq DSLTE technology, based on the latest AnyWan GRX300 Network processor family. On this platform, the Netgem Quattuor advanced LTE mobile hotspot can be docked to provide the additional bandwidth. With HYBRIDGE, carriers can offer up to 200 Mbps aggregated download throughput and 100 Mbps aggregated upload throughput, with flawless Quality-of-Service (QoS) and minimum investment, controlled by a software based traffic management suite. The aggregated DSL and LTE WAN bandwidth enables several HD video streams simultaneously in any location, even in areas where the wire line service is ADSL only, not VDSL. In addition Hybridge offers Gigabit Ethernet LAN ports and Dual Band Concurrent 2.4GHz + 5GHz Wi-Fi to support fluid distribution of the content to multiple devices in the Home. As a special feature, the LTE module can be separated from the Gateway and can be used as a stand-alone mobile LTE Hotspot. With a single product and subscription pack, operators’ customers can benefit both from an ultra-fast broadband at home and from the best mobile internet when On-the-Go. Lantiq www.lantiq.com www.electronics-eetimes.com Electronic Engineering Times Europe November 2013 43


EETE NOV 2013
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