SI5351A-B07555-GTR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5351A-B07555-GTR is a factory preprogrammed I2C programmable clock generator from Skyworks Solutions. It utilizes the MultiSynth architecture to generate up to three non-integer-related frequencies ranging from 2.5 kHz to 200 MHz with zero ppm error. The device operates on a core supply voltage (VDD) of 2.25 V to 3.6 V and supports output buffer voltages (VDDO) of 1.8 V, 2.5 V, or 3.3 V. It requires an external crystal reference of 25 MHz or 27 MHz. The component is housed in a 10-pin MSOP package and functions within an ambient temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple asynchronous clock frequencies using high-resolution fractional dividers
• Configurable spread spectrum modulation selectable at each output
• Supports glitchless frequency changes and static phase offset
• Eliminates need for external power supply filtering due to excellent PSRR

Clock Generators, PLLs, Frequency Synthesizers Applications

• XO replacement in cost-sensitive designs
• Networking and communication equipment
• Servers and storage systems
• Printers, scanners, and projectors

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogramming code associated with the suffix B07555 against system requirements. Confirm that the 10-MSOP package form factor aligns with PCB layout constraints. Ensure the I2C interface compatibility matches the host controller specifications before integration.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this variant when fixed-frequency outputs are required without field programming. Compare against blank Si5351A parts if dynamic configuration via ClockBuilder Pro is needed. Verify that the three-output limitation of the MSOP package meets the design's clock domain requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5351 family, which includes variants supporting internal VCXOs (Si5351B) or external clock inputs (Si5351C). The 'A' designation indicates it relies solely on an external crystal reference. The 'GTR' suffix denotes tape-and-reel packaging suitable for automated surface-mount assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements include other Si5351A variants with different output counts or packages, such as the 16-QFN or 20-QFN versions. Cross-reference with Si5350 series parts if pin-programmable configuration is acceptable instead of I2C.