DS1077U-125+

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The DS1077U-125+ is a programmable oscillator produced by Maxim Integrated, one of the world\'s most trusted semiconductor companies. This component is part of the Clock / Timing product family, specifically the Programmable Timers and Oscillators section. This oscillator is a programmable clock source designed with an external crystal input and an integrated voltage-controlled oscillator (VCO). It features low jitter, fast lock-up times, a high level of output frequency accuracy, and a wide frequency range.

The DS1077U-125+ is specifically designed to meet the requirements of a wide array of applications, with its impressive features and flexibility. It is ideal for telecommunications and networking applications where holdover is required, and for wireless systems that need high frequency accuracy and stability. Its frequency range is from 10 MHz to 125 MHz and it can provide clock signals from 10 kHz to 4.5 GHz. This reliable device also offers programmable temperature compensation to minimize aging effects. It has an integrated EEPROM that provides a read cycle life of 10 million, allowing multiple users of the device to customize the frequency, ratings and other settings for each device.

The DS1077U-125+ utilizes two main sections to accomplish its functions: an oscillator section and a frequency section. The oscillator section consists of an external crystal control circuit and an internal VCO control loop. The crystal control circuit stabilizes the phase, frequency, and power of the external clock source, with the exact settings determined by the integrated EEPROM memory. The VCO control loop converts the external oscillator\'s frequency to a programmable frequency. This enables the user to generate a wide range of frequency outputs.

The frequency section contains a frequency adjust circuit and a temperature compensated clock output circuit. The frequency adjust circuit utilizes the stored frequency settings in the EEPROM to adjust the output frequency according to changes in temperature. The temperature compensated clock output circuit also utilizes the EEPROM settings to mimic the temperature compensated oscillator circuit that is commonly found in quartz crystal oscillators. This feature provides additional frequency stability in extreme temperatures.

The DS1077U-125+ is capable of providing high frequency accuracy and holdover performance for a variety of applications. Its versatile programming capabilities make it suitable for any system requiring frequency stability and accuracy. It provides low jitter, fast lock-up times, and a wide frequency range, making it an ideal choice for telecommunications and networking, as well as other wireless systems.

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