SI51211-A01AFMR

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The SI51211-A01AFMR is a clock generator and frequency synthesizer manufactured by Silicon Laboratories. It is designed for low-power, low-voltage applications and features differential output clock signals, making it suitable for a variety of applications.

The SI51211-A01AFMR is based on a fully integrated PLL that consists of a phase-locked loop (PLL) that consists of a Phase Frequency Detector (PFD) coupled with a Synthesizer and Clock Generator Network. This PLL provides the synthesized clock signals necessary to drive the multiple logic devices in many applications, including but not limited to; Networking and Communications, Aerospace and Military, Automotive, Audio, Video and Imaging and Industrial Control.

The PFD detects the difference in phase and/or frequency between the two signals, and outputs a voltage that is proportional to the difference. A voltage-controlled oscillator (VCO) is a clock generator that uses the output of the PFD to regulate its frequency of oscillation. The VCO frequency is then sent to the frequency synthesizer circuit which produces numerous clock frequencies depending on the value of the control voltage.

The SI51211-A01AFMR can generate clock frequencies up to 200MHz with a wide range of programming options. It includes different modes of operation, including active frequency tuning, spread spectrum clock output, multiple output muxes, and embedded programmable offset frequency. This flexibility allows for customizing the clock frequency and the phase of the output clocks to the customer’s changing needs.

The SI51211-A01AFMR is designed to be a low-power device operating at 1.8V, making it suitable for low-voltage systems. It is also well-suited for systems with stringent power and space requirements, as it has an extremely low-power mode, as low as 30mW. The SI51211-A01AFMR also features ultra-low-noise clock signals, reducing the susceptibility to EMI and allowing for greater system performance.

The SI51211-A01AFMR is highly flexible and can be used in a wide range of applications. It is suitable for use in Ethernet, Serial ATA, Fibre Channel, Wireless LAN, Video, and other communication and computing systems.

In conclusion, the SI51211-A01AFMR is a low-power, low-voltage clock generator and frequency synthesizer ideal for use in a variety of applications. It has a wide range of programming options and can generate clock frequencies up to 200MHz. It is designed to meet stringent power and space requirements and has an ultra-low-noise output, making it a reliable and robust choice.

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