SI5351A-A-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5351A-A-GM is an I2C-programmable CMOS clock generator manufactured by Skyworks Solutions, Inc. It generates up to eight free-running clocks using an internal oscillator and a fixed-frequency crystal reference of 25 or 27 MHz. The device supports output frequencies ranging from 8 kHz to 160 MHz with zero ppm error. Key electrical parameters include a core supply voltage (VDD) of 2.5 V or 3.3 V and separate output buffer supply voltages (VDDO) of 1.8 V, 2.5 V, or 3.3 V. The maximum operating temperature is +85 °C, and the minimum is -40 °C. Output period jitter is specified at 100 ps peak-to-peak.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple non-integer-related clock frequencies from a single crystal reference
• Configurable spread spectrum modulation for EMI reduction
• Supports glitchless frequency changes and static phase offsets
• Independent output voltage supplies for flexible logic level compatibility

Clock Generators, PLLs, Frequency Synthesizers Applications

• Replacing crystals, crystal oscillators, and PLLs in cost-sensitive designs
• 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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for End-of-Life notifications prior to procurement. Ensure proper handling for moisture sensitivity levels during storage and assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when independent free-running clocks are required without external synchronization. Verify that the application does not require VCXO functionality or external CLKIN synchronization, as these features are specific to the Si5351B and Si5351C variants respectively.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5351 family of programmable clock generators. The 'A' suffix designates the version utilizing an internal oscillator for free-running operation. The 'GM' suffix indicates the 20-QFN package type. Other family members include the Si5351B with VCXO capabilities and the Si5351C with external clock input synchronization.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers: SI5351A-B-GM.