DS1081LE+T

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The DS1081LE+T is a high frequency, low jitter, low power, CMOS frequency synthesizer from Texas Instruments. It is capable of generating a very low jitter clock with frequency resolution of as low as 1 microsecond (1.5 ps rms jitter over the frequency range). The device is used in many applications such as precision timing, clock synchronization, and serial communication. The device works by using the direct digital synthesis (DDS) technique, where a signal is generated by a digital input frequency. The device is well suited for use in applications where low jitter and frequency stability are important.

The DS1081LE+T is an integrated clock and timing module that provides a single frequency from an external reference clock. It includes a dual-mode frequency synthesizer, a support FPGA, a direct memory access (DMA) controller, and a host interface. The frequency synthesizer is capable of generating a clean, low jitter clock signal with frequency resolution as low as 1 microsecond. The FPGA provides full range hardware support for applications such as data communications, video processing, control systems, and FPGA logic designs. The DMA controller allows the device to access memory at up to 30 mbps. The host interface provides an interface to host processors, allowing applications to access device features and to configure the device. The device is mainly used in applications that require a stable, low jitter clock or frequency reference.

Clock/timing applications are one of the main application areas for the DS1081LE+T. The device can be used for precision timing, clock synchronization, and other applications that require low jitter and stable frequency sources. It can also be used for applications that require multiple frequency references, such as GPS systems and radio communications. The device can be used to generate clock signals of various frequencies, and the frequency synthesizer can be adjusted to produce the desired clock signal. The device can also be used for spread spectrum applications to reduce EMI interference.

The working principle of the DS1081LE+T is based on direct digital synthesis (DDS). The device takes an external reference clock as an input and generates a stable clock signal with a low jitter and frequency resolution of 1 microsecond. The device uses a phase-locked loop (PLL) to lock the clock to the reference clock. The PLL can be adjusted to generate a frequency that is an exact multiple of the reference clock frequency. The device also has a frequency synthesizer which can generate frequencies that are not exact multiples of the reference frequency, allowing for the generation of clock signals at any frequency. The frequency synthesizer also has a frequency register and dividers which can be programmed to generate the exact frequency desired.

The DS1081LE+T is a versatile and reliable clock/timing device. It provides a low jitter, stable clock signal that can be used for precision timing, clock synchronization, and other applications that require multiple frequency references. Its integrated frequency synthesizer allows for the generation of any frequency, making it an ideal solution for many clock/timing applications. The device is easy to use, and with its low power consumption and small size, it is an excellent choice for many clock/timing applications.

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