SI5350A-B06879-GTR

Clock Generators, PLLs, Frequency Synthesizers Overview

The Si5350A-B06879-GTR 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 single supply voltage of 1.8 V, 2.5 V, or 3.3 V, consuming typically 25 mA at the core. It features low output period jitter of less than 70 ps peak-to-peak and supports configurable spread spectrum for EMI reduction. The component is housed in a 20-QFN package and requires a fixed-frequency crystal reference of either 25 MHz or 27 MHz.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent clock frequencies from a single crystal reference
• Supports glitchless frequency changes via programmable control pins
• Configurable spread spectrum functionality to minimize 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 programming code associated with the B06879 suffix to ensure the generated frequencies match the target design requirements. Confirm that the GTR suffix indicates tape and reel packaging suitable for automated surface-mount assembly processes. Cross-reference the part number with official Skyworks documentation to validate the exact pinout and electrical characteristics for the 20-QFN package variant.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a cost-effective replacement for multiple discrete crystals and oscillators is required. Ensure the application demands frequencies up to 200 MHz with precise synthesis accuracy. Verify that the system can accommodate the necessary 25 MHz or 27 MHz crystal reference. Consider the 20-QFN package size constraints and thermal dissipation requirements for the specific PCB layout.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350 family of clock generators, which are designed to replace traditional timing components in consumer electronics. The 'A' designation indicates XTAL-only input capability, distinguishing it from variants supporting voltage-controlled inputs. The 'B' series denotes factory-programmed configurations, offering immediate deployment without user-side I2C configuration.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include other Si5350A variants with different output counts or packages, such as the 10-MSOP or 16-QFN versions. Substitution requires matching the factory-programmed frequency specifications exactly. Generic clock generators lacking the MultiSynth architecture may not provide equivalent jitter performance or glitchless switching capabilities.