DS1087LU-21H+T&R

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The DS1087LU-21H+T&R is a high frequency clock synthesizer from Texas Instruments, designed for use in several types of clock and timing applications. It supports input frequencies of up to 200MHz and output frequencies up to 500 MHz and is an ideal choice for designers looking for a reliable, cost effective and low power solution for their timing needs. As part of the high frequency clock synthesizer family, the DS1087LU-21H+T&R provides a wide range of features that are designed to satisfy a variety of clock and timing requirements.

The application field of the DS1087LU-21H+T&R is primarily found in the field of clock generation, specifically in the areas of frequency synthesis, phase-locked loops (PLLs) and other clock speed generation technology. This device is commonly used in a variety of data communications, networking, and industrial control applications, as well as in the design of SONET/SDH, non-volatile memory, and microprocessor systems. Furthermore, the device also offers a variety of clock output configurations, allowing it to be quickly and easily integrated into existing system designs.

The working principle of the DS1087LU-21H+T&R is based on a phase-locked loop, or PLL. The device integrates several critical components necessary for the generation of a high frequency, low jitter clock signal. The PLL locks the output frequency of the device to a reference frequency by providing feedback control of the VCO and automatically adjusting the VCO control voltage. This ensures that the output frequency remains within a certain voltage range regardless of supply variations, load capacitances, and other variations in the system.

The DS1087LU-21H+T&R includes several circuit protection features, such as automatic fault detection, protection against bit-error rates, and temperature protection. Additionally, the POR (Power-On Reset) circuit ensures stable start-up and reset operation. The device also includes a comprehensive self-calibration algorithm, which is designed to keep the signal within certain frequency accuracy limits.

To further improve signal integrity, the DS1087LU-21H+T&R is designed to reduce the jitter performance of the signal. This device features a low-noise, wide-bandwidth VCO, as well as a fractional-N architecture and an integrated charge pump. These components help reduce the jitter to a minimum, ensuring that frequency stability is excellent even at high frequencies or over extended temperatures.

Overall, the DS1087LU-21H+T&R is an excellent choice for any clock and timing application. This device provides reliable performance and low power consumption in a wide range of environments, and its good signal integrity ensures that it remains a good solution for high frequency clock synthesizer applications. Consequently, the DS1087LU-21H+T&R is suitable for many industrial and consumer clock and timing applications.

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