SI5338A-B10382-GMR

Overview

The SI5338A-B10382-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with zero ppm accuracy and low jitter of 0.7 ps RMS typical. The device supports flexible input references including external crystals (8–30 MHz), CMOS, SSTL/HSTL, and differential inputs up to 710 MHz. Outputs are configurable for LVPECL, LVDS, CML, HCSL, CMOS, SSTL, or HSTL formats across frequencies up to 710 MHz. Powered by a single core supply of 1.8 V, 2.5 V, or 3.3 V, it operates within a temperature range of –40 °C to +85 °C in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Highly-configurable output drivers supporting up to four differential outputs, eight single-ended outputs, or mixed configurations.
• Independent frequency increment/decrement feature allows glitchless adjustments in 1 ppm steps via I2C/SMBus interface.

Applications

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

Procurement Notes

Verify the specific ordering suffix B10382 against the manufacturer's official documentation to confirm the exact pre-programmed frequency configuration and output format. Ensure compatibility with the required input reference source and output load conditions before procurement.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single IC. Verify that the required output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) match the target receiver specifications. Confirm that the input reference frequency falls within the supported ranges for the chosen input type.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'A' designation typically indicates the maximum frequency capability variant, while the suffix defines the factory-programmed configuration. It replaces discrete crystal oscillators in complex digital designs.

Replacement Considerations

Direct pin-to-pin replacements within the same family include other Si5338 variants with different pre-programmed settings. Verify that the substitute part supports the required output frequencies and signal formats without reprogramming if the application cannot support I2C configuration changes.