October 17, 2011. ON Semiconductor, a supplier of silicon devices for energy-efficient electronics, has introduced a new series of active clock generator ICs that manage electromagnetic interference (EMI) and radio frequency interference (RFI) at the clock source, delivering system-wide EMI reduction of all clock-dependent signals.
The new P3MS650100H and P3MS650103H LVCMOS peak EMI-reduction clock generators can serve in space constrained applications such as portable, battery powered devices—including mobile phones and tablets where EMI/RFI can present challenges and where compliance with regulations is a prerequisite. Housed in a miniature four-pin WDFN package measuring 1 mm x 1.2 mm x 0.8 mm, these new devices are spread-spectrum clock generators that provide what the company calls the industry’s smallest standalone active solution for reducing EMI/RFI at the clock source as well as downstream clock and data signals derived from the clock source.
The P3MS650100H and P3MS650103H support input voltages ranging from 1.8 V to 3.3 V, typical deviations of 0.45% to 1.4%, and reduction of EMI/RFI in clock sources with a frequency range of 15 MHz to 60 MHz. Operating temperature range is -20 ºC to +85 ºC.
“The need to achieve EMI regulatory compliance while controlling costs and minimizing PCB real estate is a significant challenge for mobile applications,” said Ryan Cameron, vice president of custom industrial and timing products at ON Semiconductor. “Our new EMI reduction ICs address these challenges on all fronts by providing a cost-effective solution that reduces EMI/RFI at the source and at all downstream clock and data signals derived from the source. By implementing these devices early in the design cycle, design engineers potentially avoid the need for alternate solutions and the inclusion of costly additional PCB layers or shielding to deal with EMI/RFI problems.”
The P3MS650xxxH is offered in a four-pin WDFN package and is priced at $0.37 per unit in 10,000 unit quantities.