SI5350A-B04225-GT

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5350A-B04225-GT is a factory-programmable CMOS clock generator housed in a 10-MSOP package with three LVCMOS 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 offsets. Core and output supplies operate independently at 1.8 V, 2.5 V, or 3.3 V. Typical power consumption is 25 mA for the core, with period jitter typically below 70 ps pp.

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 filtering

Clock Generators, PLLs, Frequency Synthesizers Applications

• HDTV, DVD/Blu-ray, and set-top boxes
• 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 ordering suffix matches the required package type and pin configuration. Confirm that the factory-programmed frequency plan aligns with system requirements before integration. Ensure the crystal load capacitance settings configured by ClockBuilder Pro match the selected oscillator specifications.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when replacing multiple discrete oscillators to reduce board space and cost. Choose the 10-MSOP variant if only three independent clock outputs are required. Verify that the target application operates within the specified temperature range and voltage constraints for both core and output supplies.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350 family of factory-programmable clock generators. It serves as a direct replacement for standard crystals and oscillators in cost-sensitive designs. The device integrates high-resolution fractional dividers to eliminate the need for external phase-locked loops or buffer circuits.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5350A-Bxxxxx-GM (8-output version)

Clock Generators, PLLs, Frequency Synthesizers FAQ

Can the Si5350A generate two different frequencies on the same output pin?

Yes, outputs CLK0 through CLK2 can be programmed with two distinct frequencies (F1_x and F2_x) and switched between them using the FS_0 or FS_1 control pins.

Is spread spectrum available on all outputs?

Spread spectrum can be enabled on any output driven by PLLA. Outputs synchronized to PLLB do not support spread spectrum functionality.

What is the maximum simultaneous frequency above 112.5 MHz?

Only two unique frequencies above 112.5 MHz can be output simultaneously. Multiple copies of a single high frequency can be distributed across different pins.