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PLL circuit boasts 1Gb/s signal transmission rate

Posted: 18 Jul 2013 ?? ?Print Version ?Bookmark and Share

Keywords:Gain ICs? PLL? wireless? quadrature architecture? RF designs?

Gain ICs recently unveiled a phase locked loop (PLL) circuit that will dramatically increase wireless data transmission speeds.

The company's latest offering can transmit signals at a rate of 1Gb/s, far beyond the 5Mb/s of today's Quadrature Architecture (QAM) technology. The technology allows RF designs to return to single signal FM modulation techniques thus avoiding the noise issues and frequency spectrum crowding associated with QAM technologies.

Jed Griffin, CTO of Gain ICs technologies explains, "This technology has eliminated the noise due to jitter peaking issues in standard PLLs. As a result, clean, clear signals can be transmitted at a much higher rate."

"Entire teams are trying to solve this problem for DARPA," Jed explains. "They are proposing methods that have limited transmission range, use large amounts of bandwidth, and are susceptible to noise. This method has one signal compared to the two signals in a QAM architecture. Any variance in those QAM signals causes crosstalk and lost information. By using a single, fast signal, signal strength and reliability are much improved."

Other advantages of the technology include less power consumption for longer talk times, fewer dropped calls, and the ability to free up the number of transmission channels in the crowded communication spectrum.

The Gain ICs technology is being produced as a silicon product as well as being offered as a Intellectual Property (IP) block for incorporation into integrated circuits. The technology will benefit any wireless or single wire transmission product by dramatically increasing data transmission rates.

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