DS1089L

PRODUCTION

3.3V Center Spread-Spectrum EconOscillator™

Industry's Smallest, Low-EMI 3V All-Silicon Center-Spread Clock Oscillator

Data Sheet (Rev. 3) Product Selection Table
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Overview

  • Factory-Programmed Square-Wave Generator from 33.3MHz to 66.6MHz
  • Center Frequency Remains Constant Independent of Dither Percentage
  • No External Timing Components Required
  • EMI Reduction
  • Variable Dither Frequency
  • User Programmable Down to 130kHz with Divider (Dependent on Master Oscillator Frequency)
  • ±1%, ±2%, ±4%, or ±8% Selectable Dithered Output
  • Glitchless Output-Enable Control
  • I²C-Compatible Serial Interface
  • Nonvolatile Settings
  • Power-Down Mode
  • Programmable Output Power-Down/Disable Mode

The DS1089L is a clock generator that produces a spread spectrum (dithered) square-wave output of frequencies from 130kHz to 66.6MHz. The DS1089L is shipped from the factory programmed at a specific frequency. The DS1089L is pin-for-pin compatible with the DS1087L, however, the DS1089L dithers at equal percentages above and below the center frequency. The user still has access to the internal frequency divider, selectable ±1%, ±2%, ±4%, or ±8% dithered output, dithering rate, and programmable output powerdown/disable mode through an I²C-compatible programming interface. All the device settings are stored in nonvolatile (NV) EEPROM allowing it to operate in stand-alone applications. The DS1089L also has power-down and output-enable control pins for power-sensitive applications.

Applications

  • Cable Modems
  • Computer Peripherals
  • Copiers
  • POS Terminals
  • Printers
DS1089L
3.3V Center Spread-Spectrum EconOscillator™
DS1089L: Typical Operating Circuits
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 2

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Oscillators 3
DS1087L
PRODUCTION 3.3V Spread-Spectrum EconOscillator
DS1086
PRODUCTION Spread-Spectrum EconOscillator
DS1086L
PRODUCTION 3.3V Spread-Spectrum EconOscillator
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