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DS1090U-32+ - 

Timer, Oscillator & Pulse Generator IC, Spread Spectrum Square Wave, 250 kHz, 3 V to 5.5 V, µMAX-8

DS1090U-32+ - Timer, Oscillator & Pulse Generator IC, Spread Spectrum Square Wave, 250 kHz, 3 V to 5.5 V, µMAX-8

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Manufacturer Part No:
DS1090U-32+
Newark Part No.:
73Y1036
Technical Datasheet:
DS1090U-32+   Datasheet
See all Technical Docs

Product Overview

The DS1090U-32+ is a low-frequency, spread-spectrum EconOscillator in 8 pin µMAX package. It 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 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 125KHz to 250KHz. 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 32

Applications

Signal Processing, Power Management, Industrial, Portable Devices

Product Information


:
250kHz

:
3V

:
5.5V

:
µMAX

:
8Pins

:
-40°C

:
85°C

:
-

:
MSL 1 - Unlimited
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