SI5338H-B-GM

Overview

The SI5338H-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 outputs with frequencies up to 710 MHz. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. It includes flexible input references, spread spectrum capabilities, and I2C/SMBus programming via ClockBuilder Pro software.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers.
• Low phase jitter of 0.7 ps RMS typical with high precision zero ppm frequency accuracy.
• Flexible input support including external crystals (8-30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz).
• Highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant systems.
• Ethernet switch/router and 1 GbE/10 GbE interfaces.
• Processor and FPGA clocking solutions.
• Broadcast video/audio timing applications.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape/reel specifications. Ensure compatibility with the I2C bus voltage levels used in the target system design.

Selection Notes

Select this component for designs requiring independent frequency generation across multiple outputs with minimal jitter. Confirm that the required output signal format and voltage levels are supported by the specific driver configuration available in the Si5338 family.

Part Context

The SI5338 series replaces multiple discrete crystal oscillators with a single programmable IC. It offers space savings through its 4x4 mm QFN-24 package and reduces BOM complexity by consolidating clock generation functions into one device.

Replacement Considerations

Consult the official Skyworks replacement matrix for verified substitutes. Generic cross-model replacements may not match the specific frequency ranges or output configurations required.