MK74CG117BFLFTR

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MK74CG117BFLFTR is a clock/timing device in the family of clock generators, PLLs, and frequency synthesizers. It is a four output frequency synthesizer offering flexible solutions for generating stable clock signals up to 300/400/500 MHz. The potential applications for the device include networking, computer, and communications applications such as network processors and network switches, ASICs and FPGAs, telecommunications and multimedia systems, USB 3.0, Ethernet, PCIe, and SATA interconnections.

MK74CG117BFLFTR is a fully integrated device, meaning it consists of four pre-aligned variable frequency oscillators (VFOs), four dividers, a phase frequency detector (PFD), a charge pump and a low pass loop filter. The oscillators are highest performance fixed frequency TXCO (temperature compensated oscillators) that can be chosen from a range of frequencies from 5 to 400 MHz. Thus the same part number is configurable to support frequencies from 5 to 500 MHz if a reference clock is provided.

MK74CG117BFLFTR provides all the components and circuit blocks necessary for a basic PLL, including a phase frequency detector, a charge pump, and a low pass loop filter. The device also has the ability to adjust automatically for the temperature variations of the components inside, ensuring stable and reliable operation.

The PFD of MK74CG117BFLFTR is capable of detecting the frequency differences between its two inputs, VFO and reference clock. The PFD produces an output signal that is proportional to the detected frequency difference. This signal is fed to the charge pump, which in turn produces an output current that is applied to the tuning voltage of the VFOs.

The charge pump keeps adjusting the tuning voltage of the VFOs until the frequency of the VFOs is the same as the reference clock frequency. The output of the charge pump is then connected to a low-pass loop filter, and the loop filter enables a stable, low-noise, low-jitter output frequency.

MK74CG117BFLFTR also has the ability to fine-tune the output frequency, making it possible to select the optimal frequency for each application. It supports multiple output frequencies and phase relationships, allowing for easy design of multi-phase clocks and high-frequency systems.

The MK74CG117BFLFTR is an ideal device for applications that require precise, stable clock signals in a wide frequency range. It is particularly suitable for high performance computing, wireless communication and virtualization applications, as well as for usage in automotive and industrial applications that require high reliability and low cost.

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