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Multiphase Spread-Spectrum EconOscillator

Industry's Widest Temperature Range, Multiphase Oscillator

Product Details

Key Features

Applications/Uses

Parametric specs for Silicon Oscillators
fOUT (MHz) (max) 2
Spread Spectrum Yes
fOUT (kHz) (min) 31.25
User Prog. fOUT I2C
VCC (V) 3.0 to 3.6
Reset Out No
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
2.26
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Silicon Oscillators
fOUT (MHz) (max) 2
Spread Spectrum Yes
fOUT (kHz) (min) 31.25
User Prog. fOUT I2C
VCC (V) 3.0 to 3.6
Reset Out No
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
2.26

Key Features

  • EconOscillator with Two, Three, or Four Phase Outputs
  • Ideally Suited as the Clock Generator for Switch Mode Power Supplies
  • Output Frequencies Programmable from 2MHz to 31.25kHz
  • Dithered Output Significantly Reduces EMI Emissions
  • No External Timing Components Required
  • Nonvolatile (NV) Configuration Settings
  • User-Programmable—Factory Programmed Options Available
  • Operating Temperature Range: -40°C to +85°C

Applications/Uses

  • Printers
  • Servers
  • Switch-Mode Power Supplies

Description

The DS1094L is a silicon oscillator that generates four multiphase, spread-spectrum, square-wave outputs. Frequencies between 2MHz and 31.25kHz can be output in either two, three, or four-phase mode. The internal master oscillator can be dithered by either 0, 2, 4, or 8%; to reduce the amount of peak spectral energy at the fundamental and harmonic clock frequencies. This significantly reduces the amount of electromagnetic interference (EMI) radiation that is generated at the system level. The DS1094L is ideally suited as a clock generator for switched-mode power supplies. The outputs generated by the DS1094L are used by DC-DC circuitry to efficiently shift voltages either up or down. The DS1094L can be programmed using the I²C-compatible, 2-wire serial interface to select the output frequency, number of clock phases, and dither rate, or optionally it can be shipped from the factory custom programmed.

Simplified Block Diagram

DS1094L: Typical Operating Circuit DS1094L: Typical Operating Circuit Zoom icon

Technical Docs

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 .