HMC7025LP5ETR

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The HMC7025LP5ETR is a low power clock generator from Analog Devices. It is a monolithic phase-locked loop (PLL) designed for applications requiring frequency synthesis or jitter attenuation. It features an output frequency range of up to 8.0GHz and wide tuning range up to 41.4dB. The device integrates a Gilbert cell mixer for low noise applications, as well as a divide-by-2 output, programmable loop bandwidth and digital gain and phase adjustment.

The HMC7025LP5ETR is a highly integrated device that includes a voltage-controlled oscillator (VCO), voltage-controlled amplifier (VCA), and phase-frequency detector (PFD) as well as other basic logic blocks. A fully-differential, linear-phase PLL is used to generate a low-phase noise clock; integrated VCO, VCA and PFD ensures that the requirements of most applications are met with minimal system cost. The device also includes an offset compensation loop to reduce frequency-domain jitter.

The HMC7025LP5ETR is well-suited for a number of clock/timing applications, including frequency synthesis, clock recovery from data and jitter attenuation. It is ideal for cellular base station and SONET/SDH applications due to its low-power operation, wide frequency range and wide tuning range. The device can be used for high-speed SERDES communications and network applications, given its low-phase-noise and jitter attenuation capabilities.

The HMC7025LP5ETR can be driven by a single reference clock or multiple reference clocks, depending on the application. In a single-clock application, its VCO is controlled directly; in a multi-clock application, its frequency is derived from a cascade of PLL loops. It has an integrated loop bandwidth regulator to allow fine tuning of its bandwidth according to a given application’s noise and jitter requirements.

The HMC7025LP5ETR is optimized for use in combination with other components, such as low-noise power amplifiers and baluns. It supports a range of DC biases, allowing it to be used in a variety of applications, including clock and data recovery, modulation/demodulation and time-division multiplexing. It is also suitable for industrial and consumer applications, given its ability to generate high-quality clock signals for video, audio and timing devices.

In sum, the HMC7025LP5ETR from Analog Devices is a low-power, low-noise clock generator ideally suited to a wide range of clock/timing applications. It is perfect for frequency synthesis, jitter attenuation, SERDES communications and network applications, as well as other timing applications. With its integrated loop bandwidth regulator, its range of DC biases and its support for single- and multi-clock applications, the HMC7025LP5ETR is an excellent choice for those seeking a low-power and low-noise clock generator for their applications.

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