SI5338C-B05777-GMR

Overview

The SI5338C-B05777-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent output drivers with zero ppm precision. The device supports flexible input references, including differential inputs up to 710 MHz and single-ended CMOS inputs up to 200 MHz. Output formats include LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL, with frequencies ranging from 0.16 MHz to 710 MHz depending on the format. Key electrical parameters include a core supply voltage of 1.8 V, 2.5 V, or 3.3 V, a typical operating current of 45 mA, and a typical phase jitter of 0.7 ps RMS. It operates within an ambient temperature range of –40 °C to +85 °C.

Feature Summary

• Low phase jitter of 0.7 ps RMS typical value
• Independent glitchless frequency adjustment in 1 ppm steps
• Supports PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliance
• Highly configurable spread spectrum (SSC) with adjustable deviation and modulation rate

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4 systems
• Processor and FPGA clocking
• Telecom line cards
• Fibre Channel and SAN applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the pre-programmed configuration file stored in the internal non-volatile memory. Ensure that the I2C pull-up voltages are compatible with the selected core supply voltage, particularly when operating below 2.5 V.

Selection Notes

Select this component for designs requiring independent frequency synthesis on multiple outputs without external crystal oscillators. Consider the output driver voltage requirements (1.5 V, 1.8 V, 2.5 V, or 3.3 V) for each channel to match the load specifications. Verify that the required input reference frequency falls within the supported ranges for the chosen input pin type.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'C' in the model number typically denotes a specific factory-programmed configuration variant within the series, while the 'GMR' suffix indicates tape and reel packaging. The device replaces discrete crystal oscillators and buffers in complex digital systems.

Replacement Considerations

Direct replacements must be verified through Skyworks Solutions or authorized distributors using the specific configuration code associated with the 'C' suffix. Generic Si5338 variants may require reprogramming via I2C to achieve identical functionality.