XRT91L33IG-F

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XRT91L33IB-F devices belong to the family of Clock/Timing Application Specific devices

The device is a fixed-frequency, programmable, voltage-controlled clock generator that can produce high-accuracy output frequencies from 0.001 – 550MHz. The XRT91L33IB-F can generate high-accuracy output signals from a single chip through an internal PLL loop, and its frequency accuracy can reach ±0.05%.

The features of XRT91L33IB-F enable a variety of applications, such as cellular base station, Fiber Optic Transmission equipment, broadcast equipment, network data transmission, and common clock applications.

XRT91L33IB-F timing applications provide key advantages including low jitter and low phase noise performance, high frequency accuracy, fast settling times, and small footprints.

Working Principle of XRT91L33IB-F

The device includes a voltage-controlled oscillator (VCO), divider chain, feedback loop and an auxiliary voltage (V AUX ) generator.

The VCO’s oscillation frequency is determined by the frequency setting network (FSN). A control voltage (V CTRL ) is used to program the FSN, changing the VCO frequency.

The reference clock is supplied to the input of the PLL loop and passes through the divider chain, where it is divided down by a series of dividers. The divided output then passes through the feedback loop, which is composed of the FSN and V CTRL , to the VCO.

The output of the VCO is then filtered to reduce jitter, and the filtered signal is passed back to the frequency divider, providing the input to the PLL loop. The complete PLL loop is then compared to the reference clock, resetting the PLL loop frequencies until the two frequencies match.

Timer Features of XRT91L33IB-F

The XRT91L33IB-F supports many timing functions. It has a very low jitter output with a reference clock frequency ranging from 0.5 to 50MHz. Its frequency accuracy is excellent with a 0.05% error range. The timer has programmable divider chains with noise blanking, and a wide bandwidth from 0.5 to 500MHz. The XRT91L33IB-F also has low power consumption, allowing it to be used in many portable and low power applications.

The device can be used in Synchronous Ethernet, optical Modem/Network switches, telecom infrastructure, industrial control, and media transmission applications. It is often used in networks and industrial systems to ensure precise and low-jitter synchronization of systems. The XRT91L33IB-F is also ideal for use in embedded designs with an extensive range of features that provide system designers with the high-precision performance they require.

Conclusion

XRT91L33IB-F is a reliable and robust Clock/Timing Application Specific device that is ideal for any application that requires high frequency accuracy and low-jitter synchronization. With its low power consumption, extensive features, and wide bandwidth, the device can be used in a variety of applications ranging from cellular base stations to embedded designs, making it an invaluable tool to any system designer.

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