SI5350A-B01991-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5350A-B01991-GMR is a factory-programmable CMOS clock generator manufactured by Skyworks Solutions. It utilizes a PLL and MultiSynth architecture to generate up to eight non-integer-related frequencies ranging from 2.5 kHz to 200 MHz with 0 ppm error. The device operates on a fixed-frequency crystal reference of 25 or 27 MHz and supports glitchless frequency changes. It features low output period jitter, configurable spread spectrum, and user-configurable control pins for power management and output enable functions.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent clock frequencies from a single crystal reference
• Supports glitchless frequency transitions and configurable spread spectrum
• Includes programmable control pins for dynamic system configuration
• Provides separate voltage supplies for core logic and output buffers

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 programming parameters associated with the B01991 suffix using ClockBuilder Pro software. Confirm that the package type matches the required number of outputs for the target design. Ensure the crystal reference frequency aligns with the programmed configuration.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when replacing multiple discrete crystals and oscillators in cost-sensitive designs. Choose based on the required number of outputs and the need for pin-controlled frequency selection. Verify supply voltage requirements for both core and output sections.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350 family of factory-programmable clock generators. It differs from I2C-programmable variants like the Si5351 by utilizing direct pin control rather than digital interfaces. The GMR suffix indicates tape and reel packaging suitable for automated surface-mount assembly.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5350A variants with different output counts or package types. Cross-family substitution with Si5351 requires I2C interface support.