SI5338L-B04837-GMR

Overview

The SI5338L-B04837-GMR is an I2C-programmable quad clock generator from Skyworks Solutions. It synthesizes any frequency on four output drivers using MultiSynth technology, achieving zero ppm precision. The device supports a core supply of 1.8, 2.5, or 3.3 V and operates within a temperature range of –40 to +85 °C. It features low phase jitter of 0.7 ps RMS typical and accepts flexible inputs including differential clocks up to 710 MHz. Outputs are independently configurable for formats such as LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis with 0 ppm accuracy on four outputs
• Low phase jitter of 0.7 ps RMS typical across various output formats
• Flexible input reference supporting external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (up to 710 MHz)
• Independently configurable output drivers supporting LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats

Applications

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

Procurement Notes

Verify the specific ordering suffix B04837 against the manufacturer's current documentation to confirm factory programming parameters. Ensure compatibility with I2C/SMBus interface requirements and check for moisture sensitivity handling instructions during storage and assembly.

Selection Notes

Select this component when designing systems requiring precise, glitch-free frequency translation or buffer replacement for multiple crystal oscillators. Consider the 4x4 mm QFN-24 package constraints and verify that the required output voltage levels (1.5, 1.8, 2.5, or 3.3 V) match the target load specifications.

Part Context

This part belongs to the Si5338 family of high-performance, low-jitter clock generators. The family utilizes patented MultiSynth technology to replace discrete oscillators. The SI5338L variant specifically denotes a configuration optimized for general-purpose programmable clock generation with standard industrial temperature ratings.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family may require reprogramming via ClockBuilder Pro software to match specific frequency and format configurations. Verify that alternative SKUs support the same input/output voltage ranges and jitter performance metrics.