CDC857-2DGGRG4

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The clock generator, PLL (Phase Locked Loop), frequency synthesizer known as CDC857-2DGGRG4 is a device used in many applications for providing specific and reliable clock and timing signals. This device combines various functions, including a clock/timing source and a reliable clock generator/VCXO (voltage controlled crystal oscillator) that allows variable timing frequencies.The CDC857-2DGGRG4 has been designed to fulfil the specific needs of applications that require variable clock/timing signals with low jitter and low noise. It features a variable reference clock frequency of 0 to 6MHz and a wide range of output frequencies ranging from 1.3MHz to 200MHz, with a maximum tolerance over 20MHz.The CDC857-2DGGRG4 is an integrated device that combines the essential components of a clock/timing signal generator, namely a clock generator, a programmable PLL (Phase Locked Loop) and a voltage controlled crystal oscillator (VCXO). The clock generator functions as the source of clock signals for the device, providing reliable and low-noise clock pulses that are used for the generation of the desired timing signal output.The programmable phase locked loop (PLL) is used to provide the CDC857-2DGGRG4 with the necessary clock/timing signal. The PLL is an analog circuit that is used to control the frequency and phase of an output signal in relation to the input signal. It combines the clock source signal from the clock generator with a series of feedback loops and uses the signals to form a lock-in condition where the output frequency is determined by the loop gain and the input frequency.The VCXO (voltage controlled crystal oscillator) is an important part of the clock/timing signal generator as it provides stable and accurate timing frequency. The VCXO provides a fixed reference frequency that is used by the loop control system to produce the desired clock/timing signal output.In addition to its basic clock/timing signal generating functions, the CDC857-2DGGRG4 also offers advanced control capabilities, such as phase and frequency control, programmable pre- and post-divider settings, as well as an adjustable output duty cycle.The CDC857-2DGGRG4 gives its users the flexibility to tailor the device to their specific requirements and applications. With its wide range of output frequencies and adjustable pre/post dividers, it can provide many different types of clock/timing signals with precision control, low power consumption and high reliability.In conclusion, the CDC857-2DGGRG4 is an ideal solution for applications requiring a highly configurable and reliable clock/timing signal generator. It combines a low-noise clock generator, PLL and VCXO, offering users a cost-effective and versatile solution for all their clock/timing signal requirements.

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