Spread Spectrum PLL

The IDT5P50901/2/3/4 is a family of 1.8V low power, spread spectrum clock generators capable of reducing EMI radiation from an input clock. Spread spectrum technique is capable of reducing the harmonic frequency amplitude peaks by several dB. 

The IDT5P50904 accepts an input clock frequency from 80 MHz to 170 MHz and produces an output clock of the same frequency, with a modulation frequency of ICLK*27/80000. The spread amount can be chosen through the select pins on the device. 


  • 8-pin DFN package (2x2mm)
  • 8-pin MSOP package (3x4.9mm)
  • Provides a spread spectrum output clock
  • Input frequency range of 80 to 170 MHz
  • Modulation Frequency is ICLK*27/80000
  • Output frequency range of 80 to 170 MHz
  • Center and down spread
  • Peak reduction by 8 dB to 16 dB typical on 3rd through 19th odd harmonics 
  • Low EMI feature can be disabled 
  • Operating voltage of 1.8 V, 2.5 or 3.3V 
  • RoHS 6 compliant package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
5P50904DVGI Not Recommended for New Designs DVG8 TSSOP 8 I Yes Tube Availability
5P50904DVGI8 Obsolete DVG8 TSSOP 8 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
5P50901-2-3-4 Datasheet Datasheet PDF 128 KB Aug 20, 2012