SI5338A-B05144-GMR

Overview

The SI5338A-B05144-GMR is an I2C-programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent output drivers with 0 ppm precision and a typical RMS jitter of 0.7 ps. The device supports differential (LVPECL, LVDS, CML) and single-ended (CMOS, HCSL, SSTL, HSTL) formats across frequencies up to 710 MHz. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V, drawing a typical current of 45 mA. Encased in a 4 x 4 mm QFN-24 package, it features flexible input references including crystals, CMOS, and differential clocks up to 710 MHz.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four outputs with zero ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typ for high-speed serial applications.
• Flexible input support: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Independent output voltage selection per driver (1.5, 1.8, 2.5, or 3.3 V) with glitchless frequency adjustment capabilities.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking solutions
• Broadcast video/audio timing infrastructure

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the programmed configuration, as the base part number defines the hardware capabilities while the suffix denotes the factory-set parameters. Ensure compatibility with the required I2C address and output format specifications before procurement.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single source with low jitter. Verify that the required output voltage levels match the available VDDO options (1.5V to 3.3V) and that the input reference frequency falls within the supported ranges for the chosen input pin configuration.

Part Context

This device belongs to the Si5338 family of programmable clock generators. It serves as a replacement for multiple discrete crystal oscillators by consolidating frequency generation into a single IC. The family is characterized by its ability to handle high-speed serial standards like PCIe and Ethernet through configurable output drivers.

Replacement Considerations

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