3.3V Low Power, Reduced EMI Clock Synthesizer

The NB2872A is a versatile spread spectrum frequency Modulator designed specifically for a wide range of Clock frequencies. The NB2872A reduces ElectroMagnetic Interference (EMI) at the Clock source, allowing system wide reduction of EMI of all Clock dependent signals. The NB2872A 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 NB2872A uses the most efficient and optimized modulation profile approved by the FCC and is implemented by using aproprietary all digital method. The NB2872A 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 insignificantly lower system EMI compared to the typical narrow band signal produced by Oscillators and most frequency generators. Lowering EMI by increasing a signal's bandwidth is called 'spread spectrum Clock generation'. The NB2872A is targeted towards all portable devices with very low power requirements like MP3 players, Notebooks and digital still cameras.
By ON Semiconductor
NB2872A 's PackagesNB2872A 's pdf datasheet
NB2872ASNR2G TSOP
NB2872ASNR2 TSOP




NB2872A Pinout, Pinouts
NB2872A pinout,Pin out
This is one package pinout of NB2872A,If you need more pinouts please download NB2872A's pdf datasheet.

NB2872A Application circuits
NB2872A circuits
This is one application circuit of NB2872A,If you need more circuits,please download NB2872A's pdf datasheet.


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