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Partname: | DS1090U-1 |
Description: | 4 to 8 MHz, Low-frequency, spread-spectrum econ oscillator |
Manufacturer: | Maxim Integrated Products |
Package: | SOP |
Pins: | 8 |
Oper. temp.: | -40 to 85 |
Datasheet: | PDF (0.99M). Click here to download *) |
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 pinprogrammed dither circuit. These features allow the DS1090 to be used in applications where a spreadspectrum 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. |
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Click here to download DS1090U-1 Datasheet*) |
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