SI5350C-B03344-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5350C-B03344-GT is a factory-programmable CMOS clock generator with an integrated PLL, manufactured by Skyworks Solutions. It utilizes a dual PLL and MultiSynth 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 supports glitchless frequency changes and configurable spread spectrum. It operates on core and output supply voltages of 1.8 V, 2.5 V, or 3.3 V. This specific part number indicates a configuration for the 10-MSOP package, which provides three LVCMOS outputs.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates free-running and synchronized clocks using a dual PLL architecture
• Supports exact frequency synthesis with zero ppm error across specified ranges
• Features user-configurable control pins for output enable, power down, and frequency select
• Includes programmable spread spectrum capability to reduce electromagnetic interference

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 factory-programmed configuration matches the required system timing specifications before integration. Confirm that the 10-MSOP package variant aligns with the PCB land pattern design. Ensure the selected crystal frequency (25 MHz or 27 MHz) corresponds to the programmed reference input settings defined in the datasheet.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a fixed-frequency solution is preferred over I2C programmability. The 10-MSOP package is suitable for designs requiring three independent clock outputs. Verify that the application does not require more than two unique frequencies above 112.5 MHz simultaneously, as this exceeds the device's simultaneous high-frequency output capability.

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 Si5350C relies on pin-based control and pre-programmed memory. The 'B' suffix denotes the factory-programmed version, while 'GT' specifies the tape and reel packaging for the 10-MSOP form factor.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5350C variants with different package options such as 16-QFN or 20-QFN if additional outputs are needed. Cross-family substitution with Si5351A/B/C requires I2C programming support and may necessitate firmware changes.