DS1086, DS1086H, DS1086Z:Spread-Spectrum EconOscillator

The DS1086 EconOscillator™ is a programmable clock generator that produces a spread-spectrum (dithered) square-wave output of frequencies from 260kHz to 133MHz. The selectable dithered output reduces radiated-emission peaks by dithering the frequency 2% or 4% below the programmed frequency. The DS1086 has a power-down mode and an output-enable control for power-sensitive applications. All the device settings are stored in nonvolatile (NV) EEPROM memory allowing it to operate in stand-alone applications.

Key Features
  • User-Programmable Square-Wave Generator
  • Frequencies Programmable from 260kHz to 133MHz
  • 2% or 4% Selectable Dithered Output
  • Glitchless Output-Enable Control
  • 2-Wire Serial Interface
  • Nonvolatile Settings
  • 5V Supply
  • No External Timing Components Required
  • Power-Down Mode
  • 10kHz Master Frequency Step Size
  • EMI Reduction
DS1086, DS1086H, DS1086Z: Typical Operating Circuit
DS1086, DS1086H, DS1086Z: Typical Operating Circuit
Applications/Uses
  • Cable Modems
  • Cell Phones
  • Computer Peripherals
  • Copiers
  • PCs
  • Printers
DataSheet
titleDownload file
DS1086-DS1086Z Data SheetDS1086-DS1086Z.pdf
Parametrics
Part NumberfOUT
(MHz)
fOUT
(kHz)
ΔfOUT
(%)
User Prog. fOUTSpread SpectrumVCC
(V)
Reset OutOper. Temp.
(°C)
Package/PinsBudgetary
Price
maxminmaxSee Notes
DS1086133260±1.25 (0 to 70°C)I2CYes4.75 to 5.25No0 to +70µMAX/8
SOIC(N)/8
$0.95 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • DS1077L:3V EconOscillator/Divider
  • DS1077:EconOscillator™/Divider
  • DS1085L:3.3V EconOscillator Frequency Synthesizer
  • DS1085:EconOscillator Frequency Synthesizer
  • DS1073:3-Volt EconOscillator/Divider
  • DS1075:EconOscillator/Divider
Ordering Information
Part NumberNotesStatusRecommended ReplacementPackageTempRoHS
DS1086HU-C01+ActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
DS1086HU-C01+TActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
DS1086HU-C01/T+WNo Longer AvailableµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
DS1086HU-C01/T/WNo Longer AvailableµMAX,;8 pin;15.6 mm²-40°C to +85°CNo
DS1086HU-C02+ActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
DS1086UNo Longer AvailableDS1086U+µMAX,;8 pin;15.6 mm²-40°C to +85°CNo
DS1086U+ActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
DS1086U+TActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
DS1086U-26666MHz, 2% Down Dither, 5VNo Longer AvailableDS1086U+µMAX,;8 pin;15.6 mm²-40°C to +85°CNo
DS1086U-266+ActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
Part NumberNotesStatusRecommended ReplacementPackageTempRoHS
DS1086ZNo Longer AvailableDS1086Z+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
DS1086Z+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
DS1086Z+T&RActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
DS1086Z+WNo Longer AvailableSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
DS1086Z-11D16.78MHz, 2% Center Dither, 5VNo Longer AvailableDS1086Z-11D+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
DS1086Z-11D+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
DS1086Z-42M20.4MHz, 4% Down Dither, 5VNo Longer AvailableDS1086Z-42M+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
DS1086Z-42M+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
DS1086Z-450+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
DS1086Z-450+TActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
DS1086-DS1086Z.pdf DS1086
Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface MAX5492
How to 'Center' a Down-Dithering EconOscillator DS1086
Adding Windows NT/2000/XP Support to the AN3315 Parallel-Port 2-Wire Software DS3904
Writing Parallel-Port 2-Wire Software in C DS3904
The Effects of Adjusting the DS1086L's Dither Span and Dither Frequency on EMC Measurements DS1087L
Using Spread Spectrum Oscillators to Reduce Radiated Emissions in Consumer Products DS1086
Using the DS1086 as a Microcontroller Clock to Reduce EMI DS1086
DS1086 Frequency Calculator and Frequency Calculation Algorithm DS1086
2-Wire Communication Using LabVIEW DS1847
DS1086H.pdf DS1086
DS1086.pdf DS1086
DS1086-DS1086Z.pdf DS1086H