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3.3V Spread-Spectrum EconOscillator

Industry's Smallest Low-EMI 3V, All-Silicon Clock Oscillator Eases Design and Cuts Cost

Product Details

The DS1086L EconOscillator™ is a 3.3V programmable clock generator that produces a spread-spectrum (dithered) square-wave output of frequencies from 130kHz to 66.6MHz. The selectable dithered output reduces radiated-emission peaks by dithering the frequency 0.5%, 1%, 2%, 4%, or 8% below the programmed frequency. The DS1086L 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 130kHz to 66.6MHz
  • 0.5%, 1%, 2%, 4%, or 8% Selectable Dithered Output
  • Adjustable Dither Rate
  • Glitchless Output-Enable Control
  • 2-Wire Serial Interface
  • Nonvolatile Settings
  • 2.7V to 3.6V Supply
  • No External Timing Components Required
  • Power-Down Mode
  • 5kHz Master Frequency Step Size
  • EMI Reduction
  • Industrial Temperature Range: -40°C to +85°C

Applications/Uses

  • Cable Modems
  • Cell Phones
  • Computer Peripherals
  • Copiers
  • PCs
  • Printers
Parametric specs for Silicon Oscillators
fOUT (MHz) (max) 66
Spread Spectrum Yes
fOUT (kHz) (min) 130
User Prog. fOUT I2C
VCC (V) 2.7 to 3.6
Reset Out No
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
$1.00 @1k
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Simplified Block Diagram

DS1086L: Typical Operating Circuit DS1086L: Typical Operating Circuit Zoom icon

Design & Development

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Description

The DS1070K EconOscillator programming kit is a complete hardware/software solution for programming Dallas Semiconductor's 2-wire EconOscillator™ products for evaluation and prototyping new designs. The kit is compatible with the DS1077(L), DS1085(L), DS1086(L), and DS1087(L).

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Features

  • Programs and Reads the Registers of the DS1077(L), DS1085(L), DS1086(L), DS1087(L)
  • Built-in Settings Calculator Determines the Settings Required for the Desired Frequency
  • Win95/WinNT 4.0-Compatible Software
  • ZIF Sockets for Both 8-Pin µSOP and 8-Pin SO Devices
  • 2.7V to 5.5V Operation

Description

The DS1086LPMB1 peripheral module provides the necessary hardware to interface the DS1086L 3.3V spread-spectrum EconOscillator™ to any system that utilizes Pmod™-compatible expansion ports configurable for I²C communication. The DS1086L is a programmable clock generator that produces a spread-spectrum (dithered) square-wave output of frequencies from 130kHz to 66.6MHz. The selectable dithered output reduces radiated-emission peaks by dithering the frequency 0.5%, 1%, 2%, 4%, or 8% below the programmed frequency. The DS1086L has a power-down mode and an output-enable control for power-sensitive applications.

Refer to the DS1086L IC data sheet for detailed information regarding operation of the IC.

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Features

  • User-Programmable 130kHz to 66.6MHz Square Wave
  • No External Timing Components Required
  • 6-Pin Pmod-Compatible Connector (I²C)
  • Example Software Written in C for Portability
  • Secondary Header Allows Daisy-Chaining of Additional Modules on the I²C Bus
  • Output Header Provides Access to Control Signals for External Circuitry
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

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Support & Training

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Parameters

Parametric specs for Silicon Oscillators
fOUT (MHz) (max) 66
Spread Spectrum Yes
fOUT (kHz) (min) 130
User Prog. fOUT I2C
VCC (V) 2.7 to 3.6
Reset Out No
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
$1.00 @1k

Key Features

  • User-Programmable Square-Wave Generator
  • Frequencies Programmable from 130kHz to 66.6MHz
  • 0.5%, 1%, 2%, 4%, or 8% Selectable Dithered Output
  • Adjustable Dither Rate
  • Glitchless Output-Enable Control
  • 2-Wire Serial Interface
  • Nonvolatile Settings
  • 2.7V to 3.6V Supply
  • No External Timing Components Required
  • Power-Down Mode
  • 5kHz Master Frequency Step Size
  • EMI Reduction
  • Industrial Temperature Range: -40°C to +85°C

Applications/Uses

  • Cable Modems
  • Cell Phones
  • Computer Peripherals
  • Copiers
  • PCs
  • Printers

Description

The DS1086L EconOscillator™ is a 3.3V programmable clock generator that produces a spread-spectrum (dithered) square-wave output of frequencies from 130kHz to 66.6MHz. The selectable dithered output reduces radiated-emission peaks by dithering the frequency 0.5%, 1%, 2%, 4%, or 8% below the programmed frequency. The DS1086L 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.

Simplified Block Diagram

DS1086L: Typical Operating Circuit DS1086L: Typical Operating Circuit Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal