SI5338D-B09540-GM

Overview

The SI5338D-B09540-GM is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with zero ppm frequency accuracy using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats. It 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. Configuration is performed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables any-frequency synthesis with 0 ppm precision on four independent drivers
• Supports flexible input references: external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential inputs (5-710 MHz)
• Configurable output drivers support various signal formats and independent supply voltages (1.5, 1.8, 2.5, or 3.3 V)
• Includes glitchless frequency adjustment in 1 ppm steps and independent phase adjustment with <20 ps resolution

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards and Fibre Channel/SAN applications

Procurement Notes

Verify the specific ordering suffix B09540 against the manufacturer's current documentation to confirm factory-programmed configuration parameters. Ensure compatibility with the required I2C bus voltage levels, as register settings may need adjustment for buses below 2.5 V.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single package. Verify that the target output formats (LVPECL, LVDS, etc.) and frequencies fall within the specified ranges for each driver. Confirm that the available input reference source matches the supported frequency bands.

Part Context

This part belongs to the Si5338 family of high-performance, low-jitter clock generators. The family utilizes patented MultiSynth technology to replace multiple discrete crystal oscillators. Variations within the series differ primarily by pre-programmed output configurations and specific electrical characteristics defined by their unique ordering suffixes.

Replacement Considerations

Direct pin-to-pin replacements within the same package must be verified against the official datasheet cross-reference list. Substitutes should match the 24-QFN footprint and support the required output formats and supply voltages.