SI5351C-B04516-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5351C-B04516-GMR is an I2C-programmable CMOS clock generator manufactured by Skyworks Solutions. It features eight LVCMOS outputs and synchronizes to an external reference clock input (CLKIN) ranging from 10 MHz to 100 MHz. The device generates frequencies up to 200 MHz with 0 ppm synthesis error using MultiSynth fractional dividers. It operates on a core supply voltage of 2.25 V to 3.6 V and output voltages of 1.71 V to 3.6 V. Typical period jitter is less than 70 ps peak-to-peak. The component is housed in a 20-QFN package and supports spread spectrum modulation.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Synchronizes to an external reference clock for precise frequency generation
• Generates up to eight independent non-integer-related frequencies
• Provides exact frequency synthesis with zero parts-per-million error
• Supports configurable spread spectrum modulation at each output

Clock Generators, PLLs, Frequency Synthesizers Applications

• Replacing crystal oscillators and phase-locked loops in cost-sensitive designs
• Networking and communication equipment requiring multiple clock domains
• Servers and storage systems needing glitchless frequency changes
• Printers, scanners, and projectors utilizing programmable timing signals

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogrammed configuration associated with the B04516 suffix against the design requirements before procurement. Confirm that the external reference clock source matches the CLKIN specifications. Ensure the ordering documentation aligns with the required packaging format. Cross-reference the part number with the manufacturer's current availability status.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this variant when synchronization to an external reference clock is mandatory rather than free-running operation. Verify that the application requires eight distinct output channels. Ensure the system can accommodate the 20-QFN footprint. Confirm that the external reference frequency falls within the supported 10 MHz to 100 MHz range for proper PLL locking.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5351 family of programmable clock generators. The 'C' designation indicates support for an external clock input, distinguishing it from internal oscillator variants. The 'B' suffix denotes the package type and revision. This series replaces discrete crystals, VCXOs, and fanout buffers in embedded systems.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5351C variants with different factory presets or pin-compatible packages such as the 16-QFN version if fewer outputs are acceptable. Verify that any substitute maintains the same I2C interface and output drive strength characteristics.