SI5338Q-B05203-GMR

Application Specific Clock/Timing Overview

The SI5338Q-B05203-GMR is a programmable quad clock generator utilizing 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. Maximum input frequencies reach 710 MHz for differential inputs and 200 MHz for CMOS. Output frequencies range from 0.16 to 710 MHz depending on the format. It operates on a single core supply of 1.8, 2.5, or 3.3 V with typical current consumption of 45 mA. Jitter performance is specified at 0.7 ps RMS typical.

Application Specific Clock/Timing Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm accuracy.
• Low phase jitter of 0.7 ps RMS typical across various output formats.
• Highly configurable outputs support up to four differential or eight single-ended clocks.
• Flexible input reference options include external crystals (8-30 MHz), CMOS (5-200 MHz), and differential signals (up to 710 MHz).

Application Specific Clock/Timing Applications

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

Application Specific Clock/Timing Procurement Notes

Verify the specific factory programming code 'B05203' against the official Skyworks ordering guide to confirm the exact frequency plan and pin configuration. Confirm that the 'GMR' suffix indicates tape-and-reel packaging suitable for automated assembly processes.

Application Specific Clock/Timing Selection Notes

Select this component when independent frequency synthesis on multiple outputs is required without using multiple crystal oscillators. Ensure the target output voltage levels (1.5, 1.8, 2.5, or 3.3 V) match the load requirements. Verify that the input source matches one of the supported flexible reference types.

Application Specific Clock/Timing Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and buffers in high-performance digital systems. The QFN-24 package provides a compact 4 x 4 mm footprint suitable for space-constrained designs.

Application Specific Clock/Timing Replacement Considerations

Direct replacements within the same family include other Si5338 variants with different factory programming codes. Ensure the substitute part number supports the required output formats and frequencies defined in the system design.