SI5338N-B04374-GMR

Overview

The SI5338N-B04374-GMR is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with zero ppm precision using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with individual output drivers configurable for 1.5 V, 1.8 V, 2.5 V, or 3.3 V. Key electrical parameters include a maximum input frequency of 710 MHz, a typical RMS jitter of 0.7 ps, and a core supply current of 45 mA.

Feature Summary

• MultiSynth technology enables any-frequency synthesis with 0 ppm accuracy on four independent outputs.
• Flexible output drivers support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL signal formats.
• Independent phase adjustment (<20 ps steps) and glitchless frequency increment/decrement capabilities.
• Configurable spread spectrum (SSC) with adjustable deviation (0.5% to 5.0%) and modulation rates.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant timing
• Ethernet switch/router clocking
• Processor and FPGA clock generation
• Broadcast video/audio timing systems

Procurement Notes

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

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source. Validate that the target output voltage levels (1.5 V to 3.3 V) match the receiving device specifications. Confirm that the input reference frequency falls within the supported ranges for the chosen input type (crystal, CMOS, or differential).

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators in space-constrained designs. The device utilizes a 4 x 4 mm QFN-24 package and is programmed via ClockBuilder Pro software for configuration and NVM burning.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence by comparing MultiSynth architecture, output driver configurations, and jitter specifications with existing design requirements before substitution.