SI5350A-B04056-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5350A-B04056-GM is a factory-programmable CMOS clock generator housed in an 8-lead MSOP package. It utilizes a PLL and 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, drawing a typical core current of 25 mA. It supports glitchless frequency changes, configurable spread spectrum, and static phase offsets. The component requires a 25 MHz or 27 MHz crystal reference and features low output period jitter typically below 70 ps pp.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent clock frequencies from a single crystal reference
• Supports glitchless frequency transitions and configurable spread spectrum for EMI reduction
• Features user-configurable control pins for power management and output enable functions
• Provides separate voltage supplies for core logic and output buffers to support level translation

Clock Generators, PLLs, Frequency Synthesizers Applications

• HDTV, DVD/Blu-ray, and set-top box systems
• Audio/video equipment and gaming consoles
• Printers, scanners, and projectors
• Residential gateways and networking communication devices
• Servers and storage systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory programming configuration associated with the B04056 suffix using ClockBuilder Pro software or official Skyworks documentation. Confirm that the 8-lead MSOP package meets the required pin count and physical footprint constraints for the target PCB design. Ensure the selected crystal matches the 25 MHz or 27 MHz reference specifications outlined in the datasheet.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a cost-sensitive solution is needed to replace multiple discrete crystals and oscillators. The 8-output capability of the broader Si5350 family allows for higher density, but this specific MSOP variant provides three outputs. Consider the separate VDD and VDDO supply requirements if different voltage levels are needed for logic and I/O interfaces. Verify that the required output frequencies do not exceed the simultaneous unique frequency limits above 112.5 MHz.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The SI5350A-B04056-GM belongs to the Si5350 family of factory-programmable clock generators. Unlike the I2C-configurable Si5351 series, the Si5350A relies on pin-based control and pre-programmed configurations. This specific part number indicates a custom frequency plan created via Skyworks' ClockBuilder Pro tool, distinguishing it from blank or generic variants within the same package type.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5350A variants in the 10-MSOP package with compatible factory programming. For functional equivalence with I2C configurability, consider the Si5351A series, though pinouts and control methods differ. Verify that any substitute maintains the same output count, frequency range, and package dimensions.