SI5351C-B06543-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5351C-B06543-GM is an I2C-programmable CMOS clock generator from the Si5351 family, manufactured by Skyworks Solutions. It features eight LVCMOS outputs capable of generating non-integer-related frequencies up to 200 MHz with 0 ppm error. The device synchronizes to an external reference clock input (CLKIN) ranging from 10 to 100 MHz and utilizes a standard 25 or 27 MHz crystal oscillator. Key electrical parameters include a core supply voltage range of 2.25 V to 3.6 V, output buffer voltages of 1.8 V, 2.5 V, or 3.3 V, and typical period jitter below 70 ps peak-to-peak. It operates within a temperature range of -40°C to +85°C and is housed in a 20-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• I2C programmable architecture for flexible frequency synthesis
• Synchronization capability via external CLKIN reference
• Configurable spread spectrum modulation at each output
• Independent voltage supply pins for level translation

Clock Generators, PLLs, Frequency Synthesizers Applications

• XO replacement in cost-sensitive designs
• Audio/video equipment and gaming systems
• Servers and storage networking infrastructure
• Printers, scanners, and projectors

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogrammed configuration associated with the B06543 suffix using ClockBuilder Pro software, as this code defines the unique frequency plan. Confirm that the required external reference clock falls within the supported 10 to 100 MHz range for the Si5351C variant. Ensure power supply sequencing requirements are met during design validation.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the Si5351C variant specifically when synchronization to an external reference clock is required, distinguishing it from the free-running Si5351A. Verify that the application requires eight independent outputs, as other packages offer fewer channels. Consider the 20-QFN package size constraints and thermal characteristics if high drive strength is utilized across all outputs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5351 family of MultiSynth clock generators, which replaces discrete crystals, oscillators, and PLLs. The 'C' designation indicates support for an external clock input, while the 'B' series denotes the second generation of the device. The part integrates high-resolution fractional dividers to achieve precise frequency synthesis without integer boundary errors.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements include other Si5351C variants with different output configurations or packaging, such as the 16-QFN version for four outputs. Cross-referencing with the Si5350 family may be necessary for pin-compatible alternatives with fewer outputs, though register compatibility must be verified.