SI5350A-B06405-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The Si5350A-B06405-GT is a factory-programmed, user-definable custom clock generator manufactured by Skyworks Solutions. It utilizes a PLL and high-resolution fractional divider 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 either 25 MHz or 27 MHz. It features glitchless frequency changes, configurable spread spectrum, and low output period jitter typically below 70 ps pp. The component supports independent core and output voltage supplies (1.8 V, 2.5 V, or 3.3 V) and includes programmable control pins for power down, output enable, and frequency selection.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent, non-integer-related clock frequencies from a single crystal reference
• Provides exact frequency synthesis at each output with zero parts-per-million error
• Supports glitchless frequency transitions and configurable spread spectrum modulation
• Features user-configurable control pins for power management and output state selection

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
• Handheld instrumentation devices
• Residential gateways and networking communication equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-programmed configuration associated with the B06405 suffix against the target system requirements using ClockBuilder Pro software. Confirm that the package type matches the design constraints, as the Si5350A family offers varying output counts across different form factors. Ensure the crystal reference frequency aligns with the programmed parameters before integration.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when replacing discrete crystals and oscillators in cost-sensitive designs requiring precise frequency synthesis. Consider the package options based on the required number of outputs: 10-MSOP for three outputs, 16-QFN for four outputs, or 20-QFN for eight outputs. Verify that the application benefits from the low jitter performance and flexible control pin configurations provided by the MultiSynth architecture.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The Si5350A belongs to the broader Si535x family of CMOS clock generators, which also includes I2C-programmable variants like the Si5351. Unlike the I2C versions, the Si5350A relies on factory programming and direct pin control for configuration. This distinction makes it suitable for applications where I2C bus resources are limited or where deterministic pin-based control is preferred over digital interface configuration.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include other factory-programmed Si5350A variants with different output counts or package types, such as those in 16-QFN or 20-QFN formats. Cross-family substitution with Si5351 models requires verification of the control interface, as Si5351 devices utilize I2C programming rather than the pin-controlled logic found in the Si5350A series.