SI5338C-B05390-GMR

Overview

The SI5338C-B05390-GMR 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, HCSL, CMOS, SSTL, and HSTL. The device accepts flexible input references up to 710 MHz and provides 0 ppm precision with typical phase jitter of 0.7 ps RMS. Operating from a 1.8 V, 2.5 V, or 3.3 V core supply, it features I2C/SMBus control, glitchless frequency adjustment, and spread spectrum capabilities within a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm accuracy.
• Flexible input reference options include external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (5–710 MHz).
• Highly configurable output drivers support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage levels.
• Features glitchless frequency adjustments in 1 ppm steps and independent phase adjustment with <20 ps resolution.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS generation
• Ethernet switch/router and 1 GbE/10 GbE timing
• Processor and FPGA clocking systems
• Telecom line cards and MSAN/DSLAM/PON equipment

Procurement Notes

Verify the specific B05390 factory code against the manufacturer's current ordering information to confirm the exact pre-configured frequency and output settings. Ensure the I2C pull-up voltage requirements are met for standard or fast mode operation as specified in the electrical characteristics.

Selection Notes

Select this component when replacing multiple crystal oscillators with a single programmable source. Confirm that the required output frequencies fall within the supported ranges for the chosen signal format, such as 0.16–710 MHz for LVDS/LVPECL. Validate thermal performance using the provided junction-to-ambient resistance values for the target PCB layout.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'C' suffix typically denotes a factory-programmed variant with fixed frequency outputs, while the '-GMR' indicates tape-and-reel packaging. It serves as a direct replacement for fixed-frequency oscillators in high-speed digital interfaces.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and supply voltage requirements when substituting with other Skyworks Si533x series devices.