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DS1090U-2/V+

Spectrum Oscillator, 4 MHz, CMOS / TTL, µMAX, 5.5 V, DS1090 Series

DS1090U-2/V+ - Spectrum Oscillator, 4 MHz, CMOS / TTL, µMAX, 5.5 V, DS1090 Series

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Manufacturer Part No:
DS1090U-2/V+
Order Code:
2798710
Product Range
DS1090 Series
Technical Datasheet:
DS1090U-2/V+   Datasheet
See all Technical Docs

Product Information

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:
4MHz

:
CMOS / TTL

:
-

:
µMAX

:
5.5V

:
DS1090 Series

:
-40°C

:
85°C

:
-

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Technical Docs (2)

Product Overview

The DS1090U-2/V+ from Maxim Integrated Products is a low-frequency, spread-spectrum EconOscillator in 8 pin µMAX package. It is 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 four basic circuit blocks such as resistor-programmed master oscillator, factory-programmed clock prescaler, a pin-programmed dither circuit and the voltage-bias circuit that provides the feedback path to the master oscillator for frequency control and dithering functions. 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 2MHz to 4MHz. Both dither frequency and dither percentage are set using control pins.
  • Supply voltage range is 3V to 5.5V
  • Operating temperature range from -40°C to +85°C
  • Simple user programming
  • Dither percentage programmable from 0% to 8%
  • Dither rate programmable (fMOSC/512, 1024, 2048 or 4096)
  • CMOS/TTL compatible output
  • Prescaler divides the frequency of master oscillator by 2
  • Automotive AEC-Q100 qualified

Applications

Signal Processing, Power Management, Industrial, Portable Devices

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