DS1090U-2/V+ (MAXIM INTEGRATED PRODUCTS)
Спектральный кварцевый генератор, 4 МГц, КМОП / TTL, µMAX, 5.5 В, DS1090 Series
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
Области применения
Обработка Сигнала, Управление Питанием, Промышленное, Переносные Устройства
Корпус Генератора:
µMAX
Линейка Продукции:
DS1090 Series
Максимальная Рабочая Температура:
85°C
Минимальная Рабочая Температура:
-40°C
Номинальная Частота:
4МГц
Номинальное Напряжение Питания:
5.5В
Режим Расширенного Спектра:
-
Совместимость Выходов Генератора:
КМОП / TTL
Стабильность Частоты + / -:
-
SVHC (Особо Опасные Вещества):
No SVHC (15-Jan-2018)
RoHS статус:
Да