SI5338A-B05145-GM

Overview

The SI5338A-B05145-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device accepts inputs up to 710 MHz via differential or single-ended sources. Key electrical parameters include a core supply voltage range of 1.71 V to 3.63 V, a typical operating current of 45 mA, and an operating temperature range of -40 °C to +85 °C. It features low phase jitter performance and precise zero ppm frequency accuracy.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis with 0 ppm precision on four outputs
• Supports flexible input references: external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential (5-710 MHz)
• Configurable output drivers support LVPECL/LVDS (up to 710 MHz), HCSL (up to 250 MHz), CMOS (up to 200 MHz), and SSTL/HSTL (up to 350 MHz)
• Independent output voltage per driver selectable at 1.5, 1.8, 2.5, or 3.3 V

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4
• Processor and FPGA clocking
• Telecom line cards
• Fibre Channel, SAN

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and pre-programmed NVM content. Ensure the I2C pull-up voltage aligns with the supported range of 1.71 V to 3.63 V for proper interface operation.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single package. Consider the required output voltage levels (1.5 V to 3.3 V) and signal formats (LVDS, LVPECL, CMOS, etc.) to ensure compatibility with downstream receivers. Verify that the input reference source matches the supported frequency ranges for the chosen configuration.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'A' in the model number typically denotes a specific silicon revision or feature set within the series, while the alphanumeric suffix indicates factory programming configurations stored in non-volatile memory.

Replacement Considerations

Direct replacements within the same family include other Si5338 variants such as SI5338B or SI5338Q, provided they share the identical QFN-24 package and compatible pre-programmed settings. Cross-family replacements require careful verification of pinouts and electrical specifications.