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P2781 General Purpose EMI Reduction IC

P2781 Description

P2781/82/84 General Purpose EMI Reduction IC .
The P278xA is a versatile spread spectrum frequency modulator designed specifically for digital camera and other digital video and imaging application.

P2781 Features

* Provides up to 15dB of EMI suppression
* FCC approved method of EMI attenuation
* Generates a 1X, 2X, and 4X low EMI spread spectrum clock of the input frequency
* Input frequency range from 3 to 78MHz
* External loop filter for spread % adjustment

P2781 Applications

* The P278xA reduces electromagnetic interference (EMI) at the clock Applications The P278xA is targeted towards MFP, xDSL, fax modem, set-top box, USB controller, DSC, and embedded systems. Block Diagram FS0 FS1 LF VDD PLL Modulation XIN / CLKIN XOUT Crystal Oscillator Frequency Divider Feedba

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General Purpose EMI Reduction ON Semiconductor
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