SI5338K-B05046-GMR

Overview

The SI5338K-B05046-GMR is a programmable quad clock generator utilizing Skyworks MultiSynth technology. It synthesizes any frequency on four independent output drivers with zero ppm precision. The device supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. It operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. Key electrical parameters include a maximum input frequency of 710 MHz, a typical phase jitter of 0.7 ps RMS, and an operating temperature range of -40 to +85 °C.

Feature Summary

• I2C-programmable synthesis with any-frequency capability on four outputs
• Low phase jitter of 0.7 ps RMS typical
• Supports LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL output formats
• Independent frequency increment/decrement and phase adjustment features

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout configuration and factory programming settings. Ensure compatibility with I2C bus voltage levels (1.71 V to 3.63 V) and check for moisture sensitivity handling requirements during assembly.

Selection Notes

Select this component when independent, glitchless frequency adjustments are required across multiple outputs. Verify that the desired output frequencies fall within the supported ranges for the chosen signal format (e.g., up to 710 MHz for LVDS/LVPECL). Confirm that the input reference source matches the supported types, such as external crystals or differential CMOS inputs.

Part Context

This part belongs to the Si5338 family of high-performance clock generators. It replaces multiple discrete crystal oscillators by providing flexible frequency synthesis in a compact 4x4 mm QFN package. The device integrates NVM for storing configurations, enabling standalone operation after initial I2C programming.

Replacement Considerations

Consult the manufacturer's cross-reference guide for verified substitutes. Generic replacements may not support the same MultiSynth architecture or jitter performance specifications.