SI5338F-B04371-GMR

Overview

The SI5338F-B04371-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 formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates with a core supply of 1.8, 2.5, or 3.3 V and accepts inputs up to 710 MHz. Key electrical parameters include a typical phase jitter of 0.7 ps RMS, a maximum input frequency of 710 MHz, and an operating temperature range of -40°C to +85°C.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis with zero ppm accuracy on four outputs.
• Supports flexible input references: external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential (5-710 MHz).
• Configurable output drivers support various signal formats and independent voltage levels (1.5, 1.8, 2.5, or 3.3 V).
• Features glitchless frequency adjustments in 1 ppm steps and independent phase adjustment with <20 ps accuracy.

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 solutions.
• Broadcast video/audio timing infrastructure.

Procurement Notes

Verify the specific factory configuration code B04371 against the official Skyworks ordering guide to ensure correct pre-programmed frequencies and pin assignments. Confirm that the GMR suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes.

Selection Notes

Select this component when low jitter (0.7 ps typ) and high precision are required for multiple asynchronous clocks. Ensure the design accommodates the 4x4 mm QFN-24 package thermal requirements and utilizes the I2C interface for programming via ClockBuilder Pro software.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'F' designation typically denotes a specific output frequency configuration within the series, while 'B04371' represents the unique factory programming data. The device replaces multiple discrete crystal oscillators in complex digital systems.

Replacement Considerations

Direct functional replacements within the same package and specification profile include other Si5338 variants such as SI5338A, SI5338J, or SI5338Q. Verify that the substitute part number matches the required output frequencies and voltage levels, as these are often hard-coded during manufacturing.