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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The CDCVF857DGGRG4 is a device designed specifically for use in the field of Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers. It is a completely integrated device, combining a voltage-controlled crystal oscillator (VCXO) with an on-chip voltage-controlled oscillator (VCO) and frequency synthesizer. It is a single package solution for precise frequency control, offering excellent frequency stability and fast tuning times.

Application Field

The CDCVF857DGGRG4 is ideally suited for a range of applications including phase locked loops (PLLs), clocks, phase shifters, and modulators. It is particularly well suited to Cellular/Wireless applications, where fast tuning, high signal integrity, and low power consumption are required. It also finds use in GPS Systems, automotive electronics and aerospace applications, where precise frequency control is essential.

Working Principle

The device combines the use of both a VCXO and a VCO. The VCXO is designed to provide precise frequency control, while the VCO is designed to provide fast tuning times. This combination of fast tuning, precise frequency control, and low power consumption makes it ideal for use in cellular/wireless applications.

The VCO is driven by a low-skew, low-jitter clock signal, which is generated by the VCXO. This clock signal is then used to drive the VCO, which in turn generates a series of accurately timed, frequency synthesized signals. The frequency synthesized signals can be used for various timing and clock applications.

The CDCVF857DGGRG4 is an advanced device that offers greater control over frequency synthesis. It includes an on-chip phase noise cancellation module, which reduces phase noise and jitter significantly and ensures clean, high signal quality when tuning. Additionally, it includes an integrated digital phase locked loop (DPLL) that allows precise frequency setting and quick tuning times.

Conclusion

The CDCVF857DGGRG4 provides a solution for applications requiring fast tuning, precise frequency control and low power consumption. Its combination of VCXO, VCO and frequency synthesizer all integrated within one device, makes it an ideal choice for applications in the Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers field.

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