SI5338E-B-GMR

Overview

The SI5338E-B-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 flexible 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 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 V to 3.63 V, typical operating current of 45 mA, and low phase jitter of 0.7 ps RMS.

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 outputs supporting LVPECL/LVDS (0.16–710 MHz), HCSL (0.16–250 MHz), CMOS (0.16–200 MHz), and SSTL/HSTL (0.16–350 MHz).
• Independent output voltage per driver (1.5, 1.8, 2.5, or 3.3 V) and glitchless frequency adjustment in 1 ppm steps.

Applications

• PCIe Gen 1/2/3/4 common clock and Gen 3 SRNS compliant timing.
• Ethernet switch/router and 1 GbE/10 GbE applications.
• Processor and FPGA clocking systems.
• Broadcast video/audio timing distribution.
• MSAN/DSLAM/PON and Fibre Channel/SAN interfaces.

Procurement Notes

Verify the specific ordering suffix 'E' against the manufacturer's official documentation to confirm temperature grade, packaging type, and revision status. Ensure compatibility with ClockBuilder Pro software for configuration. Check for moisture sensitivity levels and recommended reflow profiles during assembly.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single IC. Ensure the required output signal format (LVDS, LVPECL, etc.) and voltage levels match the load requirements. Verify that the input reference source falls within the supported frequency ranges for optimal jitter performance.

Part Context

The SI5338 series replaces up to four discrete crystal oscillators. It is part of Skyworks' MultiSynth family, designed for high-performance timing in datacom and telecom applications. The device integrates a PLL and synthesizers in a compact 4x4 mm QFN package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided datasheet. Consult Skyworks Solutions for cross-reference information or updated product line replacements.