SI5338L-B-GM

Overview

The SI5338L-B-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates with a core supply of 1.8, 2.5, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. Input references range from external crystals (8–30 MHz) to differential inputs up to 710 MHz. Outputs are configurable for frequencies up to 710 MHz depending on the format.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis with zero ppm accuracy on four outputs
• Supports PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliance
• Configurable output drivers support LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats
• Low phase jitter of 0.7 ps RMS typical with spread spectrum capability

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4 systems
• Broadcast video/audio timing
• Processor and FPGA clocking
• Telecom line cards

Procurement Notes

Verify the specific factory programming configuration associated with the B-GM suffix against the design requirements. Confirm that the I2C/SMBus interface voltage levels match the system bus specifications. Ensure the 24-QFN package land pattern adheres to the recommended PCB layout guidelines provided in the datasheet.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single IC. Verify that the desired output signal formats (LVPECL, LVDS, etc.) and frequency ranges fall within the specified limits for each driver. Check if the input reference source matches the supported types, such as differential clocks up to 710 MHz or external crystals between 8 and 30 MHz.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete crystal oscillators by providing four independent output clocks. The device integrates a PLL and MultiSynth synthesizers to generate precise frequencies from various input references.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.