SI5350A-B01990-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5350A-B01990-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. It supports glitchless frequency changes, configurable spread spectrum, and static phase offsets. Electrical specifications include core supply voltages of 1.8 V, 2.5 V, or 3.3 V, and output buffer voltages independently selectable at the same levels. Typical period jitter is less than 70 ps pp.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple independent frequencies from a single crystal reference
• Supports glitchless frequency transitions and configurable spread spectrum
• Features user-configurable control pins for power management and output selection
• 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 configuration associated with the B01990 suffix using ClockBuilder Pro software or Skyworks technical support. Confirm that the package type matches the required output count, as the Si5350A family includes 3-output, 4-output, and 8-output variants in different packages. Ensure the crystal load capacitance requirements align with the internal settings programmed into this specific part number.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when replacing multiple discrete crystals or oscillators in cost-sensitive designs. Choose based on the required number of outputs: 10-MSOP for three outputs, 16-QFN for four outputs, or 20-QFN for eight outputs. Verify that the application requires pin-controlled features such as frequency select or spread spectrum enablement, which are supported by programmable pins P0-P4.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5350A series, which is distinguished by pin-programmable configuration rather than I2C interface. It serves as a flexible alternative to standard crystal oscillators, allowing designers to customize frequency plans without custom hardware development. The 'GMR' suffix indicates tape and reel packaging suitable for automated surface-mount assembly.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include other Si5350A-Bxxxxx-GMR variants with different factory programming but identical electrical characteristics. For applications requiring I2C configurability instead of pin control, consider the Si5351A series. Ensure any substitute maintains the same package footprint and output count.