MK2771-16RLF

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The MK2771-16RLF, sourced by Maxim Integrated, is a low-power clock generator, Phase-Locked Loop (PLL), frequency synthesizer and fanout buffer. It is designed to generate multiple ultra-low-noise and low-jitter clocks. Depending on the application, the MK2771-16RLF is suitable for clock/timing requirements in a wide range of products and systems, including consumer electronics, medical devices, aerospace and defense, industrial, and communications systems.

Applications for the MK2771-16RLF

The MK2771-16RLF is a single-chip clock generator and PLL with a low power and high performance profile, ideal for a variety of applications. The device can be used to generate one or multiple ultra-low-noise and low-jitter clocks with a maximum period of 16 ns. It is suitable for consumer electronics, medical devices, aerospace and defense, industrial, and communications systems.

The device can be used to generate one or multiple reference clock signals. Additionally, it can be used to generate up to 12 programmable frequency divider outputs. It also includes one modulated spread spectrum (SSC) output and one multi-bit fractional divider output. The device supports a wide range of output frequencies, including 8 kHz to 300 MHz.

The MK2771-16RLF is designed to provide superior low jitter performance and ultra-low phase noise. It has a jitter performance of less than 1 ps RMS and a phase noise of -138 dBc/Hz at a 10 kHz offset frequency. It has high-frequency accuracy without the need for expensive programming.

The device is designed for low power consumption and offers several features to minimize it. It features a low-voltage (1.8 V) core, a low-voltage (1.25 V) I/O supply and supports a wide range of power-down modes. Additionally, it supports programmable frequency scaling and incorporates a programmable switching frequency scaling at both the output and on-chip reference frequency levels.

Working Principle of the MK2771-16RLF

The MK2771-16RLF is based on a high-performance Phase-Locked Loop (PLL). It includes a programmable frequency divider, multi-bit fractional divider, and modulated spread spectrum (SSC) output. It also includes a programmable loop filter for improved output jitter.

At the core of the device is the PLL circuit. It is designed to lock to the input reference clock and generate a stable feedback clock signal that is in phase and synchronized with the reference clock. The PLL circuit works by comparing the frequency of the feedback clock signal with the reference clock frequency, and then outputs an error signal to the loop filter, which adjusts the feedback clock frequency so that it is synchronized with the reference clock frequency.

The device includes a programmable frequency divider, which is used to generate several clocks at different division ratios. This can be used to generate multiple clocks at different frequencies, enabling the device to meet a variety of application needs.

The device also includes a multi-bit fractional divider, which is used to generate a divider output frequency that is programmable over a wide range. It also includes a modulated spread spectrum (SSC) output, which is used to reduce capital equipment or integration costs, while enabling a greater level of system performance.

Conclusion

The MK2771-16RLF is a low-power clock generator, PLL, frequency synthesizer and fanout buffer, designed to generate multiple ultra-low-noise and low-jitter clocks for a wide range of applications. It is based on a high-performance PLL circuit and includes a programmable frequency divider, multi-bit fractional divider, and modulated spread spectrum (SSC) output. The device is designed for low power consumption and offers several features to minimize it. It is suitable for consumer electronics, medical devices, aerospace and defense, industrial, and communications systems.

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