SI5350A-B06181-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5350A-B06181-GT is a factory-programmable CMOS clock generator housed in a 10-MSOP package with three outputs. It utilizes a PLL and MultiSynth architecture to generate frequencies from 2.5 kHz to 200 MHz with 0 ppm error using a 25 or 27 MHz crystal reference. The device supports glitchless frequency changes, configurable spread spectrum, and static phase offset. Core and output supplies operate at 1.8 V, 2.5 V, or 3.3 V independently. Typical power consumption is 25 mA for the core.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates up to eight non-integer-related frequencies with exact synthesis
• Supports glitchless frequency changes via programmable control pins
• Configurable spread spectrum selectable at each output to reduce EMI
• Operates with low-cost fixed-frequency crystals without external tuning

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 B06181 suffix against system requirements. Confirm that the 10-MSOP package provides the necessary number of outputs. Ensure the design accommodates the required crystal load capacitance and supply voltage levels for both core and output domains.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when pin-controlled configuration is preferred over I2C programming. Verify that the application requires only three outputs, as other variants offer four or eight channels. Check if the specific frequency plan exceeds the limit of two unique frequencies above 112.5 MHz simultaneously.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350 family of factory-programmable clock generators. It serves as a replacement for multiple discrete crystals and oscillators in cost-sensitive designs. The 'A' variant specifically supports crystal inputs only, distinguishing it from 'B' and 'C' versions that support additional input types.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5350A-Bxxxxx-GM (8-output version)

Clock Generators, PLLs, Frequency Synthesizers FAQ

Can the Si5350A generate multiple unique frequencies above 112.5 MHz?

No, only two unique frequencies above 112.5 MHz can be simultaneously output. Multiple copies of the same high frequency can be distributed across different pins.

What is the maximum drive level for the reference crystal?

The maximum drive level for the crystal is 100 µW.

How is the spread spectrum feature controlled?

Spread spectrum can be enabled or disabled on any output using PLLA via an optional Spread Spectrum Enable (SSEN) pin.