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NB2780A

Part Number	NB2780A
Manufacturer	ON Semiconductor
Description	Reduced EMI Clock Synthesizer
Published	Jan 12, 2007
Detailed Description	www.DataSheet4U.com NB2780A Low Power, Reduced EMI Clock Synthesizer The NB2780A is a versatile spread spectrum frequen...
Datasheet	NB2780A PDF File

Overview

www.
DataSheet4U.
com NB2780A Low Power, Reduced EMI Clock Synthesizer The NB2780A is a versatile spread spectrum frequency modulator designed specifically for a wide range of clock frequencies.
The NB2780A reduces ElectroMagnetic Interference (EMI) at the clock source, allowing system wide reduction of EMI of all clock dependent signals.
The NB2780A allows significant system cost savings by reducing the number of circuit board layers, ferrite beads and shielding that are traditionally required to pass EMI regulations.
The NB2780A uses the most efficient and optimized modulation profile approved by the FCC and is implemented by using a proprietary all digital method.
The NB2780A modulates the output of a single PLL in order to “spread” the bandwidth of a synthesized clock, and more importantly, decreases the peak amplitudes of its harmonics.
This results in significantly lower system EMI compared to the typical narrow band signal produced by oscillators and most frequency generators.
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NB2780A Reduced EMI Clock Synthesizer - ON Semiconductor

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