SI5350A-B04825-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5350A-B04825-GT is a factory-programmable CMOS clock generator manufactured by Skyworks Solutions. It utilizes a PLL and MultiSynth architecture to generate up to eight non-integer-related frequencies ranging from 2.5 kHz to 200 MHz with 0 ppm error. The device operates on a fixed-frequency crystal reference of 25 or 27 MHz and supports independent core (VDD) and output (VDDO) supply voltages of 1.8 V, 2.5 V, or 3.3 V. It features configurable spread spectrum for EMI reduction, glitchless frequency changes, and low 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 user-configurable control pins for power down, output enable, and frequency selection
• Offers selectable spread spectrum functionality to reduce electromagnetic interference
• Provides level translation via separate voltage supply pins for core and outputs

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-programmed configuration associated with the B04825 suffix using ClockBuilder Pro software. Confirm that the required pinout matches the 10-MSOP package type indicated by the GT suffix. Ensure the design accommodates the specified crystal load capacitance requirements for optimal performance.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when replacing multiple discrete crystals or oscillators in cost-sensitive designs. Choose the 10-MSOP variant if three independent clock outputs are sufficient. Verify that the target application requires pin-controlled features rather than I2C programmability, as this model uses direct pin logic for configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350 family of factory-programmable clock generators. Unlike the I2C-programmable Si5351 series, the Si5350A relies on hardware pins for runtime control. The B04825 designation indicates a specific custom frequency plan programmed at the factory, distinguishing it from blank or generic variants within the same package family.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5350A variants in the 10-MSOP package, such as SI5350A-Bxxxxx-GT, provided the internal frequency configuration matches the system requirements. Cross-family substitution with Si5351 models requires redesigning the control interface from pins to I2C.