Single-chip design forms complete PLL synthesizer

Article Abstract:

Silicon Laboratories Inc of Austin, TX, has introduced a new product that simplifies and meets the wireless industry's demand for compact and low current consumption systems. Called the Si4132 dual-band frequency synthesizer integrated circuit (IC), it incorporates integrated VCOs, loop filters, as well as varactor diodes in a low-profile, 24-pin TSSOP that measures less than 150 square mm in area. In addition, it only requires four external passive components and consumes a typical current of only 18 mA at 3 VDC.

Oscillator Circuits, Oscillators, Silicon Laboratories Inc., Multivibrators

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Investigating interface ICs for fiber-optic systems

Article Abstract:

Philips Semiconductors Inc of Einhoven, Netherlands, offers a wide variety of optical transmitters and receivers covering data rates of from 155 Mb/s to 10 Gb/s. The company employs advanced bipolar-complementary-metal-oxide semiconductor and GaAs semiconductor processes to manufacture products such as transimpedance amplifiers, limiting amplifiers, data- and clock recovery devices, multiplexers and demultiplexers.

Integrated Circuits, Philips Semiconductors Inc.

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