SI5338C-B05611-GM

Overview

The SI5338C-B05611-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. It operates from a single core supply of 1.8, 2.5, or 3.3 V, features low phase jitter of 0.7 ps RMS typical, and is housed in a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Flexible input support includes external crystals (8–30 MHz), CMOS (up to 200 MHz), SSTL/HSTL (up to 350 MHz), and differential inputs (up to 710 MHz).
• Configurable outputs support LVPECL/LVDS (up to 710 MHz), HCSL (up to 250 MHz), CMOS (up to 200 MHz), and SSTL/HSTL (up to 350 MHz) with independent voltage levels.
• Features glitchless frequency adjustment in 1 ppm steps and independent phase adjustment with <20 ps resolution.

Applications

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

Procurement Notes

Verify the specific factory configuration code B05611 against the official Skyworks ordering guide to ensure correct pre-programmed frequencies and settings. Confirm that the GMR suffix indicates tape-and-reel packaging suitable for automated assembly processes.

Selection Notes

Select this component when replacing multiple discrete oscillators with a single low-jitter synthesizer. Ensure the required output signal formats (LVPECL, LVDS, etc.) and frequencies fall within the specified ranges. Verify that the I2C interface compatibility matches the system controller requirements.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'C' typically denotes commercial temperature range (-40°C to +85°C), while 'B' indicates a specific factory programming configuration. The 'GM' suffix refers to the 24-lead QFN package, and 'GMR' specifies reel packaging.

Replacement Considerations

Direct pin-to-pin replacements within the same family include other Si5338 variants with different factory codes (e.g., SI5338C-Bxxxxx-GM). Ensure the replacement part has the identical pre-programmed configuration if the design relies on default settings without reprogramming.