HMC703LP4ETR

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The HMC703LP4ETR is a small, low power, high-performance, clock synthesizer and voltage controlled oscillator (VCO) available in the HC-49S package. It is primarily used to generate a low phase noise clock signal for applications such as digital wireless communication, instrumentation, measurement and test equipment, storage area networks, and telecommunication systems.

In terms of applications, the HMC703LP4ETR operates from an on-board +15V voltage regulator and offers a complete crystal-less RF signal generation source for commercial and industrial applications. It integrates a complete, low-jitter synthesizer solution for applications that require synchronous signal sources in the 13.5GHz to 14.5GHz frequency band. Typical applications include signal generation for commercial wireless, test and instrumentation, communication and signal processing applications.

In terms of its working principle, the HMC703LP4ETR provides wideband linear frequency coverage and very low phase noise by using a voltage-controlled oscillator with voltage-controlled tuning. It contains a high-performance low-noise VCO and a low-noise frequency synthesizer. The VCO is driven by a DC voltage that is applied through the VCO control logic circuit which is used to control the output frequency of the VCO.

The frequency synthesizer used in the HMC703LP4ETR is a type of phase locked loop (PLL) frequency synthesizer. The PLL consists of a VCO, a phase frequency detector, a charge pump and a feedback loop. The PLL incorporates a programmable output divider, which is typically used to bring down the VCO frequency to a desired level. In order to maintain the stability of the output frequency, the feedback loop maintains a constant control voltage at the input of the VCO.

The HMC703LP4ETR also includes a reference source and frequency calculator, which are used to determine the output frequency and ensure frequency accuracy. The reference source is used as an initial reference to set the output frequency of the synthesizer. The frequency calculator then determines the output frequency from the reference source, the programmed divider settings, the VCO frequency and the control voltage from the VCO control logic circuit.

The HMC703LP4ETR is a highly advanced clock synthesizer and VCO for commercial, industrial and scientific applications. Its combination of low power consumption and low phase noise make it well-suited for applications requiring synchronous signal sources in the 13.5GHz to 14.5GHz frequency band. Its built-in fre-quency calculator and reference source also ensure that the output frequency is accurate, and that the system is stable and reliable.

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