SI5351A-B06856-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5351A-B06856-GMR is a factory preprogrammed I2C-configurable CMOS clock generator. It generates up to eight non-integer-related frequencies ranging from 2.5 kHz to 200 MHz with 0 ppm frequency synthesis error. The device utilizes an internal oscillator for reference and features MultiSynth fractional dividers. It operates on a core supply voltage of 2.25 V to 3.6 V and output buffer voltages of 1.71 V to 3.6 V. Typical power consumption is 27 mA with all outputs enabled, and it supports operation temperatures from -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent, non-integer-related clock frequencies using high-resolution MultiSynth fractional dividers.
• Achieves exact frequency synthesis at each output with zero parts-per-million (ppm) error.
• Configurable via I2C interface for user-defined clock tree generation.
• Supports glitchless frequency changes and configurable spread spectrum modulation.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Replacing discrete crystals, crystal oscillators, and PLLs in cost-sensitive designs
• Networking and communication equipment requiring precise timing
• Servers and storage systems needing multi-domain clocking

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogramming code 'B06856' matches the required frequency plan before integration. Confirm that the GMR suffix corresponds to the correct tape-and-reel packaging format for automated assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this variant when a fixed, custom frequency configuration is required without field programming. Ensure the design accommodates the 20-QFN package footprint if utilizing the full eight-output capability.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5351 family of programmable clock generators. The 'A' designation indicates it uses an internal oscillator for reference, distinguishing it from the VCXO-enabled Si5351B or external-reference Si5351C variants.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other factory preprogrammed Si5351A variants such as SI5351A-Bxxxxx-GM or GT, provided the specific frequency parameters match the application requirements.