News

• RF power detector 1/1/2008

  OFDM (orthogonal frequency division multiplexing) and QAM (quadrature amplitude modulation) yield high crest-factor signals (high PAR, or peak-to-average ratio), which are difficult to measure accurately. Linear Technology ....

  Fast GPS module 1/1/2008

  Swiss GPS chip and module maker u-blox has introduced the LEA-5 GPS module series, which it based on its fifth-generation positioning engine, u-blox 5. Fast ....

  Transimpedance synchronous amplification nulls out background illumination 1/1/2008

  Light sensors find use in a host of important applications, spanning from consumer electronics, such as ambient-light measurements and exposure control for cameras, to scientific instruments, such as optical-absorption ....

  Gain-of-two sample-and-hold amplifier uses no external resistors 1/1/2008

  When you need to simultaneouslysample a signal and amplifythe signal level, you can cascade acommon gain-of-one sample-and-holdamplifier and an amplifier with a voltagegain of one. With some exceptions,such an amplifier has two external resistors(Reference ....

  Thermoelectric-cooler unipolar drive achieves stable temperatures 1/1/2008

  MTosetx etngineers know about the solid-state refrigerators called Peltier devices—or, more commonly, TECs (thermoelectric coolers)—and how they can actively cool temperature- sensitive electronic components, ....

  Audio amps boost stereo effect for portables 17/12/2007

  For designers working with compact, personal audio products who need to create convincing stereo sound, Maxim has introduced the MXA9775 and 9776, “audio subsystems”. These parts are high-efficiency ....

  RFIC simulation, analysis and verification 14/12/2007

  Agilent Technologies’ GoldenGate Plus is a design package for RFIC simulation, analysis and verification that combines the high-capacity GoldenGate simulator that the company, ....

  Fast-response, precision RF power detector 4/12/2007

  In basestation design, says Linear Technology’s James Wong – product marketing manager of HF products – power measurement is a critical function and one which becomes more difficult as digital modulation ....

  Accelerometers go mainstream 1/12/2007

  Now in their second decade of commercialisation, MEMS (microelectro- mechanical systems) technologies make possible devices as diverse as cardiac monitors, inkjet-printer dispensers, and optical multiplexers. But for many electronics ....

  BROADBAND-TRANSCEIVER-CHIP MAKER TARGETS WiMAX BASE-STATION SOCKETS 1/12/2007

  Lime Microsystems is a fabless semiconductor start-up based in the UK that has been developing transceiver technology for use with wireless standards such as WiMax. The company has announced a reference design for a MicroTCA-format card ....

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