SI5351C-B06352-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5351C-B06352-GMR is an I2C-programmable CMOS clock generator featuring a VCXO architecture and synchronization to an external reference clock. It provides eight independent LVCMOS outputs capable of generating non-integer-related frequencies from 2.5 kHz to 200 MHz with zero ppm synthesis error. The device operates on a core supply voltage (VDD) ranging from 2.25 V to 3.6 V and supports output buffer voltages (VDDO) of 1.8 V, 2.5 V, or 3.3 V. It utilizes a high-resolution MultiSynth fractional divider and accepts a 25 MHz or 27 MHz crystal or a 10 MHz to 100 MHz CLKIN signal. The component is housed in a 20-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Synchronizes to an external reference clock input for precise timing alignment
• Generates up to eight independent non-integer-related frequencies with zero ppm error
• Integrates a highly linear VCXO to eliminate the need for custom pullable crystals
• Supports configurable spread spectrum modulation selectable at each output

Clock Generators, PLLs, Frequency Synthesizers Applications

• Replacing crystals, crystal oscillators, VCXOs, PLLs, and fanout buffers
• Networking and communication equipment
• Servers and storage systems
• Printers, scanners, and projectors

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the factory preprogrammed configuration code 'B06352' matches the required frequency plan before integration. Confirm that the specific ordering suffix corresponds to the desired packaging format. Ensure the external reference clock source aligns with the Si5351C input specifications.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this variant when synchronous operation with an external reference clock is mandatory. The Si5351C differs from the Si5351A by requiring an external reference rather than using an internal oscillator. Verify that the application requires the integrated VCXO functionality provided by the B-series architecture.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5351 family of programmable clock generators manufactured by Skyworks Solutions. The 'C' designation indicates support for an external reference clock input, while the 'B' suffix denotes the inclusion of a VCXO. The '-GMR' suffix typically identifies the reel packaging format for surface-mount assembly.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements within the same family include other Si5351C variants with different preprogrammed codes. Cross-family substitution may require verification of pin compatibility and register configuration.