SI5338C-B05629-GMR

Overview

The SI5338C-B05629-GMR is an I2C-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 a wide range of input references, including external crystals (8–30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz). Outputs are configurable for LVPECL, LVDS, HCSL, CMOS, SSTL, or HSTL formats, with individual supply voltages of 1.5, 1.8, 2.5, or 3.3 V per driver. It operates from a single core supply of 1.8, 2.5, or 3.3 V, features low phase jitter (typical 0.7 ps RMS), and is housed in a compact 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four outputs with true zero ppm accuracy.
• Low phase jitter performance with typical RMS values of 0.7 ps.
• Flexible input support: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Independently configurable output drivers supporting LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats.

Applications

• Ethernet switch/router timing
• PCIe Gen1/2/3/4 common clock and SRNS
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific B05629 factory configuration against design requirements using ClockBuilder Pro software. Confirm that the pre-programmed NVM settings match the target frequencies and output formats. Check current availability status as distribution may vary by region.

Selection Notes

Select this part when four independent clock signals with varying frequencies or formats are required from a single component. Ensure the input reference source matches the supported ranges (crystal, CMOS, or differential). Verify that the required output voltage levels (1.5V, 1.8V, 2.5V, or 3.3V) are compatible with the load devices.

Part Context

This component belongs to the Si5338 family of high-performance, low-jitter clock generators. The 'C' suffix typically denotes specific output format capabilities within the series, while 'B05629' indicates a unique factory-programmed configuration stored in non-volatile memory. The '-GMR' suffix denotes the tape-and-reel packaging option.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family require identical factory programming configurations. Verify that alternative SKUs support the same output formats and frequencies. Software reconfiguration via ClockBuilder Pro may be necessary if substituting with a blank or differently configured variant.