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DS1090U-1+

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

MAXIM INTEGRATED / ANALOG DEVICES DS1090U-1+
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製造商產品編號:
DS1090U-1+
訂購代碼:
2516462
技術資料表:
DS1090U-1+   Datasheet
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產品總覽

The DS1090U-1+ 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 4MHz to 8MHz. 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 1

應用

Signal Processing, Power Management, Industrial, Portable Devices

警告

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

產品訊息

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:
8MHz

:
3V

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5.5V

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µMAX

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8Pins

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-40°C

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85°C

:
-

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MSL 1 - Unlimited

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技術文件 (2)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
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