SI5338N-B05315-GM

Overview

The Si5338N-B05315-GM is an I2C-programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four output drivers with 0 ppm precision and typical phase jitter of 0.7 ps RMS. The device supports flexible inputs including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential signals (5–710 MHz). Outputs are independently configurable for formats such as LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL, with supply voltages of 1.5, 1.8, 2.5, or 3.3 V. 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

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers.
• Low phase jitter of 0.7 ps RMS typical; compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS.
• Flexible input reference options: External crystal, CMOS, SSTL/HSTL, and Differential inputs.
• Independent output voltage per driver (1.5, 1.8, 2.5, or 3.3 V) and glitchless frequency adjustments in 1 ppm steps.

Applications

• PCIe Gen1/2/3/4 systems
• Ethernet switch/router timing
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific factory-programmed NVM configuration associated with the suffix B05315, as this determines the exact output frequencies and formats. Confirm that the required output signal types and voltage levels match the programmed settings. Ensure the I2C pull-up voltage compatibility is addressed if operating below 2.5 V.

Selection Notes

Select this component when replacing multiple discrete oscillators with a single programmable source. 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). Check thermal requirements, noting a junction-to-ambient resistance of 37 °C/W in still air.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'N' designation typically indicates support for higher frequency outputs up to 710 MHz compared to lower-frequency variants. The 'GM' suffix denotes the 24-lead QFN package and RoHS compliance.

Replacement Considerations

Direct pin-compatible replacements within the same family include other Si5338 variants with different NVM configurations. Ensure the substitute part supports the required maximum output frequency and signal formats for the specific application design.