SI5338N-B04996-GM

Overview

The SI5338N-B04996-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, HCSL, CMOS, SSTL, and HSTL formats. Maximum input frequencies reach 710 MHz for differential inputs and 200 MHz for single-ended sources. Output frequencies range up to 710 MHz for differential drivers and 200 MHz for CMOS. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, consuming approximately 45 mA. Typical phase jitter is 0.7 ps RMS.

Feature Summary

• MultiSynth technology enables any-frequency synthesis with 0 ppm precision across four independent outputs.
• Flexible output configurations support up to four differential or eight single-ended signals in mixed formats.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 standards.
• Independent output voltage control (1.5 V, 1.8 V, 2.5 V, or 3.3 V) per driver.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS generation
• Ethernet switch and router timing
• Processor and FPGA clocking systems
• Telecom line cards and MSAN/DSLAM/PON equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet revision to confirm pinout compatibility and factory programming settings. Confirm that the I2C pull-up voltage requirements align with the system bus voltage, particularly if operating below 2.5 V.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single package. Ensure the target output signal format matches the supported ranges: LVDS/LVPECL/CML up to 710 MHz, HCSL up to 250 MHz, and CMOS up to 200 MHz. Validate that the input reference source meets the specified slew rate requirements for optimal jitter performance.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators. The device integrates an internal PLL and MultiSynth dividers within a compact 4x4 mm QFN-24 package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and register configuration equivalence before substituting with other Si533x variants.