DS1090
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DS1090

Low-Frequency, Spread-Spectrum EconOscillator

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Industry's Only Spread-Spectrum Resistor-Programmable Oscillator

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 14
1ku List Price Starting From $1.19
Features
  • Low-Cost, Spread-Spectrum EconOscillator™
  • Simple User Programming
  • Output Frequency Programmable from 125kHz to 8MHz
  • Dither Percentage Programmable from 0% to 8%
  • Dither Rate Programmable (fMOSC / 512, 1024, 2048, or 4096)
  • 3.0V to 5.5V Single-Supply Operation
  • CMOS/TTL-Compatible Output
  • Operating Temperature Range: -40°C to +85°C
Additional Details
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The DS1090 is a low-cost, dithered oscillator intended to be used as an external clock for switched-mode power supplies and other low-frequency applications. The dithering or sweeping function reduces peak-radiated emissions from the power supply at its fundamental frequency, as well as harmonic frequencies. The device consists of a resistor-programmed master oscillator, factory-programmed clock prescaler, and a pin-programmed dither circuit. These features allow the DS1090 to be used in applications where a spread-spectrum clock is desired to reduce radiated emissions. A combination of factory-set prescalers and external resistor allows for output frequencies ranging from 125kHz to 8MHz. Both dither frequency and dither percentage are set using control pins.

Applications

  • Embedded Microcontrollers
  • Industrial Controls
  • Printers
  • Servers
  • Switch-Mode Power Supplies
Part Models 14
1ku List Price Starting From $1.19

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS1090U-1+
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DS1090U-1+T
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DS1090U-16+
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DS1090U-16+T
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DS1090U-2+
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DS1090U-2+T
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DS1090U-2/V+
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DS1090U-2/V+T
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DS1090U-32+
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DS1090U-32+T
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DS1090U-4+
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DS1090U-4+T
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DS1090U-8+
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DS1090U-8+T
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Product Lifecycle

PCN

Sep 19, 2018

- 1753N

ASSEMBLY

DS1090U-1+

PRODUCTION

DS1090U-1+T

PRODUCTION

DS1090U-2+

PRODUCTION

DS1090U-2+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Sep 19, 2018

- 1753N

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ASSEMBLY

DS1090U-1+

PRODUCTION

DS1090U-1+T

PRODUCTION

DS1090U-2+

PRODUCTION

DS1090U-2+T

PRODUCTION

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