CDC706PWR

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CDC706PWR Application Field and Working Principle

Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers - is an incredibly important and versatile niche in electronic engineering. The CDC706PWR (Clock and Data Converter) is an example of one of these components. This device combines a clock generator and a clock recovery PLL. As such, the CDC706PWR is renowned for its extremely low phase noise and exceptionally small size.

Application

The CDC706PWR is primarily employed in communications, telecommunications, computing, and semiconductor industries, where data rates higher than 100MHz are necessary. It is especially suited to applications such as SONET, OBSAI, Ethernet, and ATM, where extremely low phase noise performance and small size are essential.

The CDC706PWR has numerous advantages over other, similar devices. It is an excellent choice for applications as it has very low jitter of 0.72ps peak-to-peak, and offers high frequency stability. It is also exceedingly small, measuring in at only 7mm x 5mm, making it very efficient in terms of board space requirements.

Working Principle

The most important component in the CDC706PWR is the Phase Locked Loop (PLL). This segment of the device is responsible for locking the input clock frequency to the reference clock frequency. It does this by comparing the two frequencies, generating a feedback signal which is used to selectively adjust the input clock frequency.

Once the two frequencies have been matched, the input clock is filtered and amplified to provide a low jitter, low phase noise output. This is done by utilizing a series of tracking switches which select the proper clock edge, minimizing skew and jitter. The CDC706PWR also has built-in jitter attenuator which makes it easier to achieve the desired performance.

The CDC706PWR uses an advanced digital calibration algorithm to detect and reduce clock drifts due to temperature and supply voltage variations, resulting in outstanding frequency stability. In addition, the device is able to switch rapidly between multiple clock sources, while maintaining the same low jitter and phase noise performance.

Conclusion

The CDC706PWR is a versatile and reliable device for applications where high frequency stability and low jitter are essential. The device benefits from its advanced digital calibration algorithm, as well as its low phase noise PLL. Furthermore, its small size and fast switching capabilities make it very attractive for a variety of applications.

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