Downconverting Mixers Cut Power And Improve Performance In 4G Basestations 

Oct 30, 2009, MD&D News Staff

The LTC554x family of downconverting mixers from Linear Technology offers high dynamic range and cover the 700-MH to 4-GHz wireless infrastructure frequency range. They’re designed to satisfy the requirements of LTE cellular and WiMAX basestations as well as 3G CDMA, WCDMA, TD-SCDMA, UMTS, and GSM/EDGE platforms....

IF Sampling Subsystem Takes The Pain Out Of Basestation Receiver Design 

Oct 19, 2009, Louis E. Frenzel, Editor in Chief

One of the trickiest parts of basestation design is the interface between the RF front end and the IF section where the ADC resides. National Semiconductor’s SP16160CH1RB IF sampling receiver subsystem addresses this problem. Designed for LTE and WiMAX basestations, it also works great in current WCDMA and GSM/EDGE systems. ...

Boost Switch Provides High Efficiency  

Oct 14, 2009, MD&D News Staff

The FDFME3N311ZT boost switch from Fairchild Semiconductor provides high efficiency for boost conversion circuits in cell phones, medical devices, and other portable and consumer applications....

Integrated IF Transceiver Cuts Power, Space, And Costs In Wireless Backhaul Apps 

Oct 9, 2009, MD&D News Staff

The TRF2443 integrated, high-linearity, low-noise IF transceiver from Texas Instruments offers XPIC support and reduces solution costs by 40%, power consumption by 30%, and space by 40%, compared to discrete implementations....

DAC Enables Multi-Standard, Multi-Carrier Systems 

Oct 7, 2009, MD&D News Staff

The Analog Devices AD9122 DAC supports the high data rates and complex modulation schemes required for advanced multi-carrier wireless and broadband communications equipment throughout the world, according to the company. It meets the requirements for GSM, WCDMA, TD-SCDMA, cdma2000, WiMAX, and LTE operation....

802.11n WLAN/Bluetooth Module Optimized For Netbooks 

Sep 28, 2009, Louis E. Frenzel, Editor in Chief

The Atheros Communications AR9002WB-1NGB 11n/BT Combo solution combines Atheros’ proven WLAN and BT chips on a single Half Mini-Card with PCI Express form factor for laptops and netbooks....

UMTS/GSM/GPRS/EDGE Transceiver Goes SAW-Less 

Sep 25, 2009, By Louis E. Frenzel, Editor in Chief

Fujitsu’s MB86L01A is the first multimode transceiver to eliminate the 3G TX and RX interstage SAW filters and LNAs. This design enables cell-phone manufacturers to reduce component count, board space, and BOM....

Antenna Solutions Support LTE Frequencies 

Sep 23, 2009, MD&D News Staff

SkyCross has announced that its iMAT antenna solutions are now available in LTE frequencies. According to the company, the iMAT technology boosts the capacity, data rates, and reliability of 4G networks to help meet and exceed the industry’s high performance expectations. ...

2.5-in. Hard-Disk Drive Packs 640 Gbytes 

Sep 22, 2009

The 2.5-in. Spinpoint M7 internal HDD from Samsung offers 640 Gbytes of storage. It targets high-end mobile computing applications requiring greater shock resistance without a compromise in performance....

Transmit Module Uses More Efficient CMOS Power Amplifier 

Sep 11, 2009, Louis E. Frenzel, Editor in Chief

Amalfi Semiconductor’s dual-band GSM/GPRS AM7802 transmit module incorporates CMOS PAs that provide greater efficiency and up to 40% more talk time than competing solutions in entry-level and ultra-low-cost handsets....

Chipsets Provide 4G Scalability 

Sep 9, 2009

The Odyssey 9000 LTE chipsets from Wavesat Inc. offer CAT-3 performance of 100 Mbits/s downlink and 50 Mbits/s uplink for mobile devices including USB dongles, data cards, mobile handsets, and MIDs. According to Wavesat, this line of highly integrated SoCs provides industry-beating performance and power consumption....

Tiny, Low-Power Audio Amps Offer High RF Immunity 

Sep 3, 2009, MD&D News Staff

Tiny, Low-Power Intersil ISL99201 And ISL99202 Audio Amps Offer High RF Immunity...

Image Sensor Provides HD Video 

Sep 2, 2009

The OV2710 from Omnivision Technologies addresses the rapidly growing demand for affordable, HD-quality digital video cameras. This native 1080p high-definition (HD) CMOS image sensor delivers high-end video conferencing and recording for camcorders, notebooks, netbooks, and other mobile applications. ...

Improved Ferrite Beads Offer 60% Lower Resistance 

Sep 1, 2009, Louis E. Frenzel, Editor in Chief

Murata’s space-saving BLM15SAX_SN advanced ferrite beads lower dc resistance up to 60% compared to previous models and provide real power savings. They also offer a dc resistance of as low as 0.02 Ω, which helps reduce power consumption in battery-powered applications. ...

Power MOSFETs Offer 8- To 30-V VDS Range 

Aug 24, 2009

Vishay Intertechnology has expanded its family of n-channel TrenchFET power MOSFETs in the thermally enhanced PowerPAK SC-75 package to offer a VDS range from 8 to 30 V. According to the company, these additions to the family include the industry’s first 30-V device in the 1.6- by 1.6-mm footprint area as well as a 20-V MOSFET with the industry’s lowest on resistance...

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