SI5338L-B04326-GMR

Overview

The SI5338L-B04326-GMR is an I2C-programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. The device supports a wide range of input references, including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz). Outputs are configurable for LVPECL, LVDS, HCSL, CMOS, SSTL, or HSTL formats, supporting frequencies up to 710 MHz for differential and 200 MHz for CMOS. It operates from a single core supply of 1.8, 2.5, or 3.3 V in a 4x4 mm QFN-24 package.

Feature Summary

• Four independent output drivers with any-frequency synthesis capability
• Low phase jitter performance of 0.7 ps RMS typical
• Flexible input support: crystal, CMOS, SSTL/HSTL, and differential
• Configurable output formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL

Applications

• Ethernet switch/router timing
• PCIe Gen1/2/3/4 common clock generation
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards

Procurement Notes

Verify the specific ordering suffix B04326 against the manufacturer's current datasheet to confirm the exact pre-programmed frequency configuration and output format settings. Ensure compatibility with the target system's I2C bus voltage levels and check for moisture sensitivity handling requirements during assembly.

Selection Notes

Select this component when low jitter and flexible frequency synthesis are required for multiple clock domains. Confirm that the desired output frequencies fall within the supported ranges for the chosen output format (e.g., LVDS up to 710 MHz, CMOS up to 200 MHz). Verify that the input reference source matches one of the supported types and frequencies.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'L' suffix typically denotes a specific factory-programmed configuration variant within the series, while 'GMR' indicates tape-and-reel packaging. It serves as a replacement for multiple discrete oscillators in complex digital systems.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family may exist but require verification of the specific frequency configuration. Generic programmable clock generators may not offer the same integrated MultiSynth architecture or jitter performance without additional external components.