SI5338J-B04777-GMR

Overview

The SI5338J-B04777-GMR is a programmable quad clock generator utilizing Skyworks 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, CML, HCSL, CMOS, SSTL, and HSTL, with frequencies ranging from 0.16 MHz to 710 MHz depending on the format. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V within an ambient temperature range of –40 °C to +85 °C.

Feature Summary

• Low phase jitter of 0.7 ps RMS typical
• Independent glitchless frequency adjustment in 1 ppm steps
• Highly configurable spread spectrum (SSC) on any output
• I2C/SMBus compatible interface for programming

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS
• Ethernet switch/router timing
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific ordering suffix B04777 against the manufacturer's current documentation to confirm factory pre-programming parameters. Confirm package type and reel specifications match design requirements before procurement.

Selection Notes

Select this component when low jitter synthesis and flexible output voltage levels are required. Ensure the input reference frequency falls within the supported ranges for the desired output format. Verify that the I2C bus voltage compatibility aligns with the system logic levels.

Part Context

This part belongs to the Si5338 family of I2C-programmable any-frequency, any-output quad clock generators. It replaces multiple crystal oscillators and functions as a frequency translator. The J suffix typically denotes a specific configuration variant within the broader product line.

Replacement Considerations

Direct replacements must maintain the 24-QFN package and I2C interface. Verify pinout compatibility and electrical specifications such as supply voltage and jitter performance. Consult the manufacturer's substitution guide for validated alternatives.