SI5338A-B04524-GM

Overview

The SI5338A-B04524-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with zero ppm precision and supports any frequency up to 710 MHz. The device features low phase jitter of 0.7 ps RMS typ, configurable output formats (LVPECL, LVDS, HCSL, CMOS, SSTL/HSTL), and independent voltage levels (1.5V, 1.8V, 2.5V, 3.3V). It operates on a single core supply of 1.8V, 2.5V, or 3.3V, draws 45 mA typical current, and functions within -40°C to +85°C in a 24-QFN package.

Feature Summary

• MultiSynth technology enables independent, glitchless frequency synthesis on four outputs with true zero ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typ for high-speed applications like PCIe Gen 1/2/3/4.
• Highly configurable output drivers supporting differential and single-ended formats with independent voltage selection.
• I2C/SMBus interface allows flexible configuration via ClockBuilder Pro software.

Applications

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

Procurement Notes

Verify the specific ordering suffix B04524 against the manufacturer's official documentation to confirm the exact pre-programmed frequency plan and output configuration. Ensure compatibility with I2C bus voltage requirements if operating below 2.5V by checking register settings.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single source. Ensure input reference capabilities match the available system clock (crystal, CMOS, or differential). Verify that the required output voltage levels and signal formats are supported by the specific output driver configurations.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and buffers, consolidating timing functions into a single space-saving 4x4 mm QFN package while maintaining low power consumption and high flexibility.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions for cross-reference information regarding legacy silicon replacements or updated series components.

FAQ

What is the maximum output frequency supported by the SI5338A?

The device supports output frequencies up to 710 MHz for differential formats such as LVPECL, LVDS, and CML.

Can the output voltages be configured independently?

Yes, each output driver can be independently configured to support 1.5 V, 1.8 V, 2.5 V, or 3.3 V supply voltages.

How is the device programmed?

The Si5338 is programmed via an I2C/SMBus-compatible serial interface, typically using Skyworks' ClockBuilder Pro software.