SI5338C-B05617-GMR

Overview

The SI5338C-B05617-GMR is an I2C-programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent outputs with 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°C to +85°C. Key electrical parameters include a maximum output frequency of 200 MHz for CMOS formats, a typical RMS jitter of 0.7 ps, and a maximum input frequency of 710 MHz via differential inputs. It is housed in a compact 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm accuracy.
• Low phase jitter performance with a typical RMS value of 0.7 ps.
• Flexible input reference options including 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 and router timing
• PCIe Gen 1/2/3/4 common clock generation
• Processor and FPGA clocking solutions
• Broadcast video and audio timing systems

Procurement Notes

Verify the specific B05617 factory configuration against design requirements using ClockBuilder Pro software. Confirm that the 24-QFN package land pattern matches PCB layout guidelines. Ensure I2C pull-up voltages are compatible with the selected core supply voltage to maintain standard compliance.

Selection Notes

Select this model when low jitter (<1 ps RMS) and high flexibility in output formats are required. The C suffix indicates support for up to 200 MHz on single-ended outputs. Verify that the application does not require frequencies above 200 MHz on single-ended drivers, as higher limits apply only to differential outputs.

Part Context

This component belongs to the Si5338 family of programmable clock generators. The 'B' designation typically refers to the specific factory programming configuration, while 'GMR' denotes the tape-and-reel packaging format. It serves as a replacement for multiple discrete crystal oscillators in complex digital systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should verify pinout compatibility and register configurations if considering alternative Skyworks models within the same series.