RF

Maxim Integrated Products introduces the MAX7057 crystal-referenced, phased-locked loop (PLL) VHF/UHF transmitter for transmitting OOK/ASK/FSK data over a wide range of frequencies. This device can operate at any frequency in the 300MHz to 450MHz range with the proper crystal frequency, and it can transmit data at up to 100kbps NRZ (50kbps Manchester coded).

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Extending its portfolio of high performance radio frequency (RF) solutions, Texas Instruments Incorporated announced a high-linearity, ultra-low noise quadrature (IQ) modulator that delivers RF output transmission up to 4-GHz, allowing service providers to easily support multiple wireless communications standards on a single RF transceiver card. TI's TRF370317 IQ modulator is a direct launch RF transmitter device that offers base station equipment manufacturers improved linearity and higher output power, which can improve overall transmitter performance, while reducing power consumption and operating expenditures for service providers.

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Fujitsu Microelectronics America, Inc., a global leader in WiMAX SoC technology and solutions, has co-authored with Cisco a new white paper entitled Beamforming Boosts the Range and Capacity of WiMAX Networks. The paper, which describes how adaptive beamforming can magnify the advantages of a WiMAX network, is available at http://us.fujitsu.com/micro/wimax/beamforming

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Texas Instruments Incorporated introduced the industry's highest integrated 2.4-GHz radio frequency (RF) front end for low-power and low-voltage wireless applications. The CC2591 increases the range (link budget) in wireless systems by integrating a power amplifier for increased output power of 22 dBm and a low-noise amplifier for improved receiver sensitivity of 6 dB.

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Texas Instruments Incorporated announced that TI has joined the newly formed RF4CE (Radio Frequency for Consumer Electronics) Consortium. This consortium is designed to create a new protocol that will enable development of radio frequency remote controls which replace IR remote controls, deliver richer communications, increase reliability and improve flexibility. As a key contributor to this technology, TI will provide both hardware and software solutions for the new RF4CE protocol.

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Infineon Technologies announced a new family of RF power transistors specifically targeted at wireless infrastructure applications in the 700 MHz frequency band. This band will be used in the U.S. to introduce 4G (fourth-generation) cellular, mobile TV broadcast and other mobile broadband-based services, including LTE (Long Term Evolution), the next-generation wireless network standard. Extending Infineon's broad portfolio of RF power transistors, the new family includes a 55 W driver and two output stage transistors (170 W and 240 W), offering the industry's highest peak power in the 700 MHz band.

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Infineon Technologies announced a new family of RF power transistors in an innovative open-cavity plastic package with a copper base. The new EPOC (Enhanced Plastic Open-Cavity) pack-age offers a 12 percent improvement in thermal resistance – compared to existing solutions – due to the better thermal conductivity of copper, allowing superior thermal and RF performance that are similar to traditional ceramic packages, but at a lower total cost and with improved reliability. With its EPOC package, thin-die and proprietary die-attach technologies, Infineon achieves the best thermal performance with high reliability and consistency for a high-volume cellular infrastructure market.

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Analog Devices, Inc. (ADI), a world leader in semiconductors for signal processing applications, introduced RF (radio frequency) detector products for RF and analog engineers who need to improve power detection performance while simplifying the design of cellular handsets, wireless infrastructure equipment and communications instrumentation.

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Analog Devices, Inc., a global leader in high-performance semiconductors for signal-processing applications, announced the availability of the ADF9010, a fully integrated RF Tx modulator and Rx analog baseband for applications that operate in the 900 MHz frequency range, including RFID readers, industrial, scientific and medical (ISM) band radio communications devices, professional mobile radios, cellular base stations and RF-over-coax applications.

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Microchip Technology Inc. announced the MiWi Peer-to-Peer (P2P) Wireless Protocol Stack, which is based upon the IEEE 802.15.4 specification. Available as a free download from Microchip's new online Wireless Design Center at www.microchip.com/wireless, the small-footprint, proprietary stack complements the new MRF24J40MA 2.4 GHz FCC-certified transceiver module and is targeted for low-cost, low-power applications, such as sensors, remote control, lighting and metering.

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