SI5350A-B04682-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5350A-B04682-GT is a factory-programmable, any-frequency CMOS clock generator manufactured by Skyworks Solutions. It utilizes a PLL and high-resolution fractional divider MultiSynth architecture to generate up to three non-integer-related frequencies ranging from 2.5 kHz to 200 MHz with 0 ppm error. The device operates on a single supply voltage of 1.8 V, 2.5 V, or 3.3 V for both the core (VDD) and output buffers (VDDO). It features low output period jitter typically less than 70 ps peak-to-peak and supports configurable spread spectrum modulation on outputs referencing PLLA. The component is housed in a compact 10-pin MSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent, non-integer-related clock frequencies from a single crystal reference
• Supports glitchless frequency transitions via user-configurable control pins
• Enables selectable spread spectrum modulation on specific outputs to reduce electromagnetic interference
• Provides separate voltage supplies for core logic and output buffers to facilitate level translation

Clock Generators, PLLs, Frequency Synthesizers Applications

• Replacing discrete crystals and oscillators in cost-sensitive designs
• HDTV, DVD/Blu-ray players, and set-top boxes
• Audio/video equipment and gaming consoles
• Printers, scanners, and projectors
• Residential gateways and networking communication devices

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-programmed frequency configuration against the target design requirements before procurement. Confirm that the 10-MSOP package variant aligns with the available footprint constraints. Ensure the selected part number corresponds to the required pinout and electrical specifications defined in the official datasheet.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a custom frequency plan requiring up to three outputs is necessary without external programming interfaces. Verify that the application can accommodate the fixed 25 MHz or 27 MHz crystal reference input. Consider the power consumption profiles and thermal characteristics if operating at maximum output counts or high frequencies.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350 family of programmable clock generators. While other variants in the series offer four or eight outputs using QFN packages, this specific model provides three outputs in a 10-MSOP form factor. It serves as a direct replacement for standard crystal oscillators in embedded systems requiring precise timing synthesis.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same package include other factory-programmed Si5350A-Bxxxxx-GT variants with different frequency configurations. Cross-package alternatives like the Si5351 series require I2C programming and are not drop-in replacements.