IDT49FCT3805ASOI

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The IDT49FCT3805A, manufactured by Integrated Device Technology (IDT), is an automotive-grade clock buffer and fanout device. It is part of the timing and synchronization offering and is used to reduce the impact of jitter, skew, and frequency variations on data signals while ensuring that they remain synchronized.

This device provides outputs that are derived from a single, common input clock. The clock buffer has a typical stage loading of eight outputs and eight inputs, and all outputs are delay matched and are synchronized with the common input clock signal.

The device accepts either a low-voltage differential or single-ended input clock signal, and the outputs can be configured as either differential or single-ended. It also features an internal PLL circuit that can be set to generate an output clock for up to five additional outputs.

The IDT49FCT3805A is a versatile clock buffer and fanout device that eliminates the need for multiple PLLs and reduces system cost and power consumption. It is well suited for applications where multiple clock domains are required, such as automotive infotainment systems and industrial automation.

The device is designed to meet the rigorous requirements of most automotive and industrial applications, with wide input and output frequency ranges and a target skew of less than 10 ps between any two outputs. It operates over a temperature range of -40°C to +125°C, and is available in a space-saving 8-pin SSOP package.

The IDT49FCT3805A is based on a PLL-based architecture, which utilizes a VCO (Voltage-Controlled Oscillator) and feedback loops. The feedback loops are used to ensure that the VCO output is in phase and frequency-locked to the input clock signal. The output clock frequency is determined by the value of the resistor and capacitor in the feedback loop.

In addition, the device incorporates low-noise techniques to reduce the propagation of noise and jitter. The programmable output delay feature gives users the option to adjust the output timing to accommodate diverse system needs.

The IDT49FCT3805A is an attractive solution for a variety of clock distribution and fanout applications. It helps ensure that signals remain synchronized, while also reducing power consumption and system cost.

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