SI5338L-B05814-GMR

Overview

The SI5338L-B05814-GMR is a programmable clock generator utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVDS, LVPECL, HCSL, CMOS, SSTL, and HSTL. The device operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. It features low phase jitter of 0.7 ps RMS typ, flexible input references up to 710 MHz, and I2C/SMBus control. Packaged in a 24-lead QFN (4x4 mm), it functions across -40°C to +85°C.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis with zero ppm accuracy on four outputs.
• Low phase jitter of 0.7 ps RMS typ for high-performance timing applications.
• Highly configurable output drivers supporting LVDS, LVPECL, HCSL, CMOS, SSTL, and HSTL formats.
• Flexible input reference options including external crystals (8–30 MHz) and differential inputs up to 710 MHz.

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4
• Processor and FPGA clocking
• Telecom line cards

Procurement Notes

Verify the specific configuration code B05814 against the manufacturer's ordering guide to confirm output frequencies and formats. Confirm the GMR suffix indicates reel packaging. Ensure I2C pull-up voltages match the system design requirements for standard or fast mode operation.

Selection Notes

Select this component when independent frequency synthesis on multiple outputs is required without using discrete oscillators. Verify that the target output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) are supported by the individual driver supplies. Check if the required input frequency range falls within the specified limits for crystal or differential inputs.

Part Context

This part belongs to the Si5338 family of I2C-programmable quad clock generators. The 'L' suffix typically denotes a specific package or temperature variant within the Skyworks portfolio, while 'B05814' defines the factory-programmed frequency plan. The 'GMR' suffix indicates tape and reel packaging for automated assembly.

Replacement Considerations

Direct pin-to-pin replacements within the same family include other Si5338 variants with different configuration codes. Verify that alternative parts support the same output formats and jitter specifications required by the application circuit.