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The spread-spectrum clocking feature distributes the fundamental clock frequency energy throughout your design to minimize energy peaks at specific frequencies. By reducing the spectrum peak amplitudes, the feature makes your design more likely meets the EMI emission compliance standards, and reduces costs associated with traditional EMI ...
- IP Core User Guide
Advanced Control Signals (pllena, areset, pfdena) Clock...
- Phase-Locked Loop
Advanced Control Signals (pllena, areset, pfdena) Clock...
- IP Core User Guide
Spread-spectrum clocking, like other kinds of dynamic frequency change, can also create challenges for designers. Principal among these is clock/data misalignment, or clock skew. A phase-locked loop on the receiving side needs a high enough bandwidth to correctly track a spread-spectrum clock.
1 de feb. de 2004 · Learn how to use the LTC6902 resistor programmable clock generator to reduce EMI in portable devices with switching regulators. The LTC6902 randomly modulates its clock frequency with spread spectrum technique, spreading the EMI energy over many frequencies.
Learn how spread spectrum clocking works, how it reduces EMI, and how it affects jitter and phase noise. This paper explains the concepts, advantages, and applications of spread spectrum clocking for microprocessor clocks and PCIe reference clocks.
Spread spectrum clocking (SSC) is a special way to reduce the radiated emissions of digital clock signals. SSC is the variation of the frequency of a clock signal in a controlled way. In the frequency domain, the SSC reduces the peak amplitude of a digital clock signal by shifting the frequency. In other words, the energy of the clock is spread.
20 de may. de 2005 · A spread-spectrum clock (CLK) is an efficient way to reduce EMI. This article describes how the spread-spectrum CLK is defined, and provides a simple formula for estimating the EMI suppression. The resulting formula is verified by data generated by the Maxim CLK Generation chip, MAX9492.
Learn how spread spectrum clocking can lower EMI and improve system performance by modulating the clock frequency. Compare Renesas' spread spectrum clock ICs and generators with different features and specifications.
