SI5338N-B04781-GM

Overview

The SI5338N-B04781-GM is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with zero ppm frequency accuracy using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. Maximum input frequency reaches 710 MHz via differential inputs, while outputs support up to 710 MHz for LVDS/LVPECL/CML. Core supply voltage ranges from 1.71 V to 3.63 V (1.8 V, 2.5 V, or 3.3 V). Typical operating current is 45 mA. Jitter performance is 0.7 ps RMS typical. The component is housed in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables any-frequency synthesis on four independent drivers with 0 ppm precision.
• Flexible output configurations supporting up to four differential or eight single-ended outputs.
• Low phase jitter of 0.7 ps RMS typical across various output formats.
• Independent output voltage control per driver: 1.5, 1.8, 2.5, or 3.3 V.

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout assignments and factory programming settings. Confirm that the I2C pull-up voltage requirements align with the system bus voltage before integration.

Selection Notes

Select this model when independent glitchless frequency adjustments and spread spectrum capabilities are required. Ensure the target application utilizes compatible input reference frequencies within the specified range and matches the desired output signal format constraints.

Part Context

This component belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete crystal oscillators by providing flexible frequency translation and buffering in a compact form factor suitable for high-density PCB layouts.

Replacement Considerations

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