SI5350A-B02790-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5350A-B02790-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, configurable spread spectrum, and static phase offsets. It features separate voltage supply pins for core (VDD) and output buffers (VDDO), supporting levels of 1.8 V, 2.5 V, or 3.3 V. The component is housed in a 10-MSOP package providing three LVCMOS outputs.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent clock frequencies from a single crystal reference
• Supports pin-controlled glitchless frequency switching between two pre-configured rates
• Configurable spread spectrum modulation for EMI reduction
• Integrated internal load capacitance eliminates external crystal components

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 B02790 suffix using ClockBuilder Pro software. Confirm that the 10-MSOP package meets board space requirements. Ensure the design accommodates the required 25 MHz or 27 MHz crystal reference and appropriate decoupling capacitors for the dual power supplies.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when cost-sensitive applications require replacing multiple discrete crystals and oscillators. Choose the 10-MSOP variant if only three output clocks are needed. Verify that the required output frequencies do not exceed the simultaneous unique frequency limits above 112.5 MHz. Ensure compatibility with the system's control logic voltage levels.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5350 family of factory-programmable clock generators. Unlike I2C-configurable variants, this model relies on pin-selectable controls for dynamic features like frequency switching. It serves as a direct replacement for standard crystal oscillators in embedded designs requiring precise timing synthesis.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5350A-Bxxxxx-GT

Clock Generators, PLLs, Frequency Synthesizers FAQ

Can the SI5350A-B02790-GT be reprogrammed after manufacturing?

No, this is a factory-programmable device. Configuration is performed by Skyworks using ClockBuilder Pro prior to shipment.

What is the maximum number of unique frequencies above 112.5 MHz that can be output simultaneously?

Only two unique frequencies above 112.5 MHz can be generated simultaneously. Multiple copies of these frequencies can be distributed to different outputs.

How is the crystal reference connected to the device?

The device uses a standard AT-cut crystal connected to the XA and XB pins. Internal load capacitance options (0, 6, 8, or 10 pF) are available to minimize external components.