SI5338K-B-GMR

Overview

The SI5338K-B-GMR is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. It supports differential and single-ended outputs including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device accepts inputs from external crystals (8–30 MHz), CMOS (5–200 MHz), or differential sources up to 710 MHz. Key electrical parameters include a core supply voltage of 1.8 V, 2.5 V, or 3.3 V, a typical operating current of 45 mA, and a maximum input frequency of 710 MHz.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm accuracy.
• Supports PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliance.
• Flexible output configurations allow up to four differential outputs, eight single-ended outputs, or mixed combinations.
• Low phase jitter performance of 0.7 ps RMS typical.

Applications

• PCIe Gen1/2/3/4 systems
• 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 assignments and factory programming settings. Ensure compatibility with I2C/SMBus interface requirements for system integration.

Selection Notes

Select this component when designing systems requiring independent clock frequencies across multiple domains. Verify that the required output signal formats (LVPECL, LVDS, etc.) and voltage levels match the available driver configurations. Confirm input reference source capabilities align with the supported frequency ranges.

Part Context

This part belongs to the Si5338 family of high-performance, low-jitter clock generators. The series is designed to replace multiple discrete crystal oscillators in complex digital systems, offering space savings through a compact 4x4 mm QFN package.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material.