SI5338N-B06178-GMR

Overview

The SI5338N-B06178-GMR is a programmable quad clock generator manufactured by Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. The device supports differential and single-ended outputs, accommodating formats such as LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. Configuration is performed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm accuracy.
• Supports flexible input references including external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs up to 710 MHz.
• Features independently configurable output drivers supporting LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats.
• Includes glitchless frequency adjustments in 1 ppm steps and independent phase adjustment with <20 ps resolution.

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 current documentation to confirm pinout configuration and factory programming settings. Ensure the I2C pull-up voltage aligns with the system bus requirements, noting that register adjustments may be necessary for voltages below 2.5 V.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single package. Validate that the target output signal formats (LVPECL, LVDS, etc.) match the load requirements. Confirm that the input reference source falls within the supported frequency ranges for the chosen input type.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The family is characterized by its ability to replace multiple discrete crystal oscillators with a single highly-configurable IC, reducing board space and power consumption while maintaining high-precision timing.

Replacement Considerations

Direct replacements must maintain the 24-QFN package and I2C interface. Verify compatibility of output driver configurations and supply voltage requirements. Consult the manufacturer's cross-reference list for verified equivalent part numbers with identical electrical characteristics.