SI5350A-B03577-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5350A-B03577-GT is a factory-programmable CMOS clock generator manufactured by Skyworks Solutions. It utilizes a PLL and high-resolution fractional divider 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 glitchless frequency changes. It features configurable spread spectrum, static phase offset, and rise/fall time control. Power supply pins allow independent core (VDD) and output (VDDO) voltage selection at 1.8 V, 2.5 V, or 3.3 V.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent clock frequencies from a single crystal reference
• Supports pin-controlled glitchless frequency switching for specific outputs
• Configurable spread spectrum functionality to reduce electromagnetic interference
• Provides separate voltage supplies for core logic and output buffers

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 B03577 suffix using ClockBuilder Pro software. Confirm that the required output count matches the package type, as the GT suffix indicates a 10-MSOP package with three outputs. Ensure the design accommodates the specified crystal load capacitance requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a cost-effective replacement for multiple discrete crystals is required. Choose the 10-MSOP package if only three output clocks are needed. Verify that the application requires pin-based configuration rather than I2C programming. Ensure the system can provide the necessary 25 MHz or 27 MHz reference crystal.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350 family of factory-programmable clock generators. Unlike the Si5351 series which supports I2C configuration, the Si5350A relies on pin controls and pre-programmed data. The -GT suffix specifically denotes the 10-MSOP package variant, which provides three clock outputs compared to the four in QFN packages.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5350A variants with different package types such as SI5350A-Bxxxxx-GM (20-QFN) or SI5350A-Bxxxxx-GM1 (16-QFN), provided the output count and pinout compatibility are verified.