HMC910LC4B

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HMC910LC4B, produced by Hittite Microwave Corporation, is part of the company’s CLOCK/Timing - Delay Lines product line. HMC910LC4B is an integrated device brand of a fractional-N Synthesizer and a 4-bit Variable Delay Line. It is a useful tool for applications that require precise time delay and clock generation.

Application Field

This module is valuable in a wide range of applications including cellular basestation, software defined radios, satcom, automotive and aerospace test equipment, synthetic aperture radar (SAR), and countless other digital signal processing devices. It allows designers to implement delay and clock generation functions that would otherwise require a number of components, thereby reducing parts count and product cost.

HMC910LC4B is beneficial for applications that require precise time delay, clock generation and jitter reduction. Its two integrated sections, variable delay line and fractional-N synthesizer, are mutually customizable, allowing for the implementation of more complex applications.

Fractional-N Synthesizer

The fractional-N synthesizer section of the module is designed to provide an extremely low noise, clean, and ultra-low jitter output clock frequency. The output can be varied from 0.01 to 320MHz, with a low-phase-noise floor of -168 dBc/Hz at 1MHz offset. Thanks to its integrated VCO and input divider, the output frequency is easy to set with a single reference frequency. High speed switching of the output frequency is also possible, using a programmable output register and control logic.

Variable Delay Line (VDL)

The 4-bit variable delay line is designed to provide precision delayed clock output, adjustable in increments of 25ps. It also features a band-limited clock which reduces clock jitter by up to 60%. With an adjustable delay range of 6.3ns, the VDL is stable and accurate, making it ideal for a wide range of applications that require long term delay precision.

Conclusion

HMC910LC4B is a versatile and powerful module for applications that require precise time delay and clock generation. Its fractional-N synthesizer section produces an extremely low noise, clean, and ultra-low jitter output with high speed switching capability. Its 4-bit variable delay line provides precision delayed clock output, adjustable in increments of 25ps and with an adjustable delay range of 6.3ns. This tool is a valuable addition to any CLOCK/Timing - Delay Lines application.

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