SI5338M-B05844-GMR

Overview

The SI5338M-B05844-GMR 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 outputs with formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device accepts flexible input references up to 710 MHz and operates from a 1.8 V, 2.5 V, or 3.3 V core supply. Key electrical characteristics include a typical phase jitter of 0.7 ps RMS, glitchless frequency adjustments in 1 ppm steps, and configurable spread spectrum modulation. It is housed in a compact 4 x 4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with zero ppm precision.
• Flexible input reference options: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Highly-configurable output drivers supporting LVPECL/LVDS (up to 710 MHz), HCSL (up to 250 MHz), CMOS (up to 200 MHz), and SSTL/HSTL (up to 350 MHz).
• Independent frequency increment/decrement feature allows glitchless frequency adjustments in 1 ppm steps.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'B05844' against the manufacturer's official documentation to confirm factory programming parameters. Ensure compatibility with I2C/SMBus interface requirements and check for moisture sensitivity handling instructions during assembly.

Selection Notes

Select this component when designing systems requiring low-jitter (<0.7 ps RMS) clock distribution with flexible output voltage levels (1.5, 1.8, 2.5, or 3.3 V). Consider the need for independent phase adjustment and spread spectrum capabilities for EMI reduction. Verify that the required input frequencies fall within the supported ranges for the chosen input pin configuration.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It is designed to replace multiple discrete crystal oscillators by providing four independent clock outputs from a single reference source. The device integrates a PLL and MultiSynth dividers to achieve high-precision frequency synthesis.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions for direct replacements or cross-references based on specific frequency and format requirements.