CDC421106RGETG4

CDC421106RGETG4 Application Field and Working Principle

The CDC421106RGETG4 is a Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers device which is specifically designed to generate output clocks at different frequencies with excellent jitter performance. This versatile device is designed with advanced technologies to provide highest system performance while requiring no additional components.

The CDC421106RGETG4 is ideally suited for a variety of applications such as high-speed data communication, optical networking, base station systems and digital audio/video systems. It can be used in data converters,frequency synthesizers, frequency multipliers, and frequency-hopping systems. It also works well in pipeline and multiprocessor systems.

Features

The features of the CDC421106RGETG4 include:

• Integrated PLL with VCO, charge pump and loop filter
• Integrated low jitter clock generator
• Programmable frequency range from 1MHz to 644MHz
• On-chip VCXO
• Scan-test interface
• Power-down mode

Working Principle

The CDC421106RGETG4 uses a PLL to generate multiple output clocks with a wide frequency range. It has a low jitter clock generator which can produce output clocks with ultra-low jitter. The Scan-Test Interface allows for easy communication with the device for testing and monitoring. The device has an on-chip VCXO which can be used to provide greater jitter attenuation. Lastly, it has a power-down mode to reduce power consumption when not needed.

The device operates by locking the frequency of the output clock to the reference clock. The input reference clock is received by the PLL. The VCO is then used to convert the frequency of the input reference clock to the desired output frequency. The charge pump is used to regulate the frequency of the output clock. The loop filter is used to smooth the voltage control signal to the VCO and provide the best possible jitter performance. In addition, the device can be used in frequency synthesizer applications. When in frequency synthesizer mode, the charge pump and loop filter are used to lock the output clock frequency to a predetermined reference frequency.

In summary, the CDC421106RGETG4 is an excellent choice for clock generator and frequency synthesizer applications. It has excellent jitter performance and a wide range of frequency ranges. Its integrated PLL with VCO, charge pump and loop filter make it a very reliable device. Its Scan-Test Interface makes it easy to communicate with the device and monitor its performance. Lastly, the power-down mode ensures that the device is only using the power it needs when it is necessary.