P2781A: General Purpose EMI Reduction IC

The P278xA reduces electromagnetic interference (EMI) at the clock source, which provides system wide reduction of EMI of all clock dependent signals. The P278xA allows significant system cost savings by reducing the number of circuit board layers and shielding that are traditionally required to pass EMI regulations.

Features
  • Generates a 1X, 2X, and 4X low EMI spread spectrum clock of the input frequency
  • External loop filter for deviation adjustment
End Products
  • MFP, xDSL, fax modem, set-top box, USB controller, DSC, and embedded systems
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
A Solution for Peak EMI Reduction with Spread Spectrum Clock GeneratorsAND9015/D (689.0kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
General Purpose EMI Reduction ICP2781/D (401.0kB)2.1
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
I2781AF-08STConsult Sales OfficePb-free Halide freeSOIC-8751-071Tube98
I2781AG-08SRLast ShipmentsPb-free Halide freeSOIC-8751-071Tape and Reel2500
P2781AF-08SRActivePb-free Halide freeSOIC-8751-071Tape and Reel2500Contact BDTIC
P2781AF-08STConsult Sales OfficePb-free Halide freeSOIC-8751-071Tube98
Specifications
ProductVDD Typ (V)fin Typ (MHz)fout Typ (MHz)Deviation TypeFeaturesTA Min (°C)TA Max (°C)
P2781AF-08SR3.33-783-78±0.25 to ±5External loop filter for deviation setting070
General Purpose EMI Reduction IC (401.0kB) P2781A
A Solution for Peak EMI Reduction with Spread Spectrum Clock Generators PCS3PS550A
SOIC-8 Narrow Body CM1216