SI5338M-B05237-GM

Overview

The SI5338M-B05237-GM is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL. The device operates with a core supply of 1.8 V, 2.5 V, or 3.3 V and accepts flexible input references up to 710 MHz. Key electrical parameters include a typical phase jitter of 0.7 ps RMS, a maximum operating temperature of +85 °C, and a typical core supply current of 45 mA.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis with zero ppm precision on four outputs.
• Supports diverse output formats: LVPECL/LVDS/CML (up to 710 MHz), HCSL (up to 250 MHz), and CMOS/SSTL/HSTL.
• Features highly configurable spread spectrum generation with frequencies from 5 to 350 MHz.
• Includes independent glitchless frequency adjustment in 1 ppm steps and phase adjustment with <20 ps accuracy.

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

Procurement Notes

Verify the specific factory-programmed configuration associated with the B05237 suffix against the system requirements. Confirm that the QFN-24 package dimensions align with the PCB land pattern specifications. Ensure I2C pull-up voltages are compatible with the selected core supply voltage.

Selection Notes

Select this component when multiple independent clock frequencies with low jitter are required from a single IC. Verify that the desired output signal formats and frequencies fall within the specified limits for each driver. Check if the flexible input reference options, such as external crystals or differential inputs, match the available source clocks.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators. The device integrates a PLL and MultiSynth synthesizers into a compact 4x4 mm QFN package, designed for space-constrained high-performance applications.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified documentation.