CDCVF857DGG

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The CDCVF857DGG is a frequency synthesizer based on a Voltage-Controlled Oscillator (VCO) phase-locked loop (PLL), and offers superior frequency resolution, low phase noise and digital control, making it suitable for a range of clock and timing applications. This PLL allows digital control of the output frequency, providing a highly precise clock signal with zero drift and excellent spectral purity.

The device employs a deep sub-micron CMOS process and utilizes a Digital Frequency Synthesizer (DFS) design with an N-divider and M-divider, enabling the frequency to be programmed with a resolution as high as 1 MHz in the oscillator’s output range. Additionally, the device’s programmable output stage allows the user to control the output waveform, duty cycle, and fall/rise times.

The CDCVF857DGG is controlled using an I2C compatible Serial Interface, and offers a wide range of operating modes from which the user may select including Halt, Standby, and Forced modes. In addition to this, adjustable security modes may be enabled for safe and secure operation in potentially hazardous applications, including countermeasures for system reset and device security. The CDCVF857DGG offers DiSEqC compatible output for the digital television market, allowing for the provision of accurate and digital control of the Discrete Frequency outputs.

The device offers digital phase control, allowing the user to precisely control the phase of the output signal. This is useful in applications requiring tightly synchronized frequency, such as video systems, as it allows the user to accurately track the phase offset of a signal relative to the input reference. The CDCVF857DGG also offers a frequency select pin, allowing the user to jump between the programmed frequencies with relative ease.

The CDCVF857DGG is designed for a range of clock and timing applications. It supports a wide range of frequencies and can be used in communications, test, lab and video systems. The device is also ideal for applications requiring synchronization in digital television and broadcast systems. Additionally, the CDCVF857DGG supports DiSEqC digital command applications and is suitable for applications requiring precise synchronization of multiple devices.

The CDCVF857DGG is a highly versatile frequency synthesizer that provides superior frequency resolution, low phase noise, and excellent spectral purity. It is controlled using an I2C compatible Serial Interface and offers adjustable security modes for secure operation in potentially hazardous applications. The device supports digital phase control and the frequency select pin, allowing for easy frequency switching between the programmed values. In addition, the CDCVF857DGG supports DiSEqC compatible output, making it suitable for applications requiring precise synchronization of multiple devices. With its range of features, the CDCVF857DGG is ideal for a range of clock and timing applications, including communications, test, lab, and video systems.

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