DS1087LU-23C/W

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The DS1087LU-23C/W is a clock generator, PLL, and frequency synthesizer integrated circuit designed by Texas Instruments (TI). The circuit is designed to operate in applications that require synchronization and frequency control of both low-speed and high- speed data. These applications can range from industrial machine automation, to audio and video signal processing, to telecommunications. The DS1087LU-23C/W is an advanced clock generator IC with many features, such as an embedded phase-locked loop (PLL) that provides exceptional jitter performance and wide frequency range, and a programmable frequency output that is adjustable up to 5 MHz. These features make the DS1087LU-23C/W suitable for a variety of applications that require precise timing and frequency control.

The DS1087LU-23C/W includes an oscillator and a divider that provides a programmable frequency output from its internal 2MHz reference. Free-running frequency is adjustable up to 5MHz. The signal is filtered by a fourth-order low pass filter, and the signal is then sent to the digital signal processor (DSP). The DSP then processes the signal and produces a signal output. This output can be configured to enable frequency shifting and rate dividing of the signal.

The PLL inside the DS1087LU-23C/W is used to control the output frequency of the device. The PLL uses a voltage-controlled oscillator (VCO) to track the internal reference frequency. The PLL is a second-order system and uses a charge pump to maintain a specified phase difference between the reference and VCO signal. A programmable loop filter integrates the phase and frequency signals, and the resulting signal is feed back to the VCO to control its frequency. The PLL can be used to increase the output frequency range to up to 25 MHz.

The DS1087LU-23C/W also has a programmable differential output that can be used to transmit higher-frequency signals with low noise. The differential output is connected directly to the PLL and can be used to output frequencies up to 25 MHz. This is especially beneficial in applications where data needs to be transmitted at high speed and through long distances.

The DS1087LU-23C/W is an excellent choice for applications that require accurate frequency control and synchronization, such as in industrial automation, audio and video signal processing, and telecommunications. Thanks to its embedded PLL, the device provides excellent jitter performance and allows for a wide frequency range. Its programmable differential output also makes this device suitable for applications that require high-speed data transmission over long distances. Thanks to its features and versatility, the DS1087LU-23C/W is a perfect solution for a variety of applications.

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