ASM3P2853A: Peak EMI Reducing Solution

The ASM3P2853A is a versatile spread spectrum frequency modulator. The ASM3P2853A reduces electromagnetic interference (EMI) at the clock source. The ASM3P2853A allows significant system cost savings by reducing the number of circuit board layers and shielding that are required to pass EMI regulations. The ASM3P2853A modulates the output of PLL in order to spread the bandwidth of a synthesized clock, thereby decreasing 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 clock generators. Lowering EMI by increasing a signal's bandwidth is called spread spectrum clock generation.

Features
  • Generates an EMI optimized clock signal at output
  • Spread Spectrum ON/OFF control
Applications
  • EMI management for high speed digital applications
End Products
  • PC peripheral devices
  • Consumer electronics
  • Embedded controller 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
Peak EMI Reducing SolutionASM3P2853/D (136.0kB)3
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
ASM3P2853AG-08SRActivePb-free Halide freeSOIC-8751-071Tape and Reel2500Contact BDTIC
Specifications
ProductVDD Typ (V)fin Typ (MHz)fout Typ (MHz)Deviation TypeFeaturesTA Min (°C)TA Max (°C)
ASM3P2853AG-08SR2.52550 48±1070
Peak EMI Reducing Solution (136.0kB) ASM3P2853A
A Solution for Peak EMI Reduction with Spread Spectrum Clock Generators PCS3PS550A
SOIC-8 Narrow Body CM1216