SI5338C-B05323-GM

Overview

The SI5338C-B05323-GM is a programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. 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, HCSL, CMOS, SSTL, or HSTL formats with independent supply voltages of 1.5, 1.8, 2.5, or 3.3 V. Key electrical parameters include a core supply voltage range of 1.71–3.63 V, typical operating current of 45 mA, and low phase jitter of 0.7 ps RMS. It operates within an ambient temperature range of –40 to +85 °C.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Flexible input reference options: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Highly configurable output drivers supporting LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats with independent voltage levels.
• 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.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout, package type, and factory programming configuration. Ensure the I2C pull-up voltage requirements match the system design, particularly if operating below 2.5 V. Confirm thermal management strategies for the QFN-24 package under maximum load conditions.

Selection Notes

Select this component when replacing multiple discrete oscillators with a single programmable source. Ensure the required output frequencies fall within the supported ranges for the chosen signal format (e.g., LVDS up to 710 MHz, CMOS up to 200 MHz). Verify that the input reference source matches one of the supported types and frequency ranges defined in the datasheet.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'C' designation typically indicates a specific factory-programmed configuration variant within the series. The 'GM' suffix denotes the tape-and-reel packaging format suitable for automated surface-mount assembly.

Replacement Considerations

Direct replacements must be verified through official Skyworks substitution tools. Cross-reference pinouts and register configurations carefully, as different factory-programmed variants may have distinct output frequencies despite identical physical packages.