SI5330M-B00232-GMR

Clock Buffers, Drivers Overview

The SI5330M-B00232-GMR is a low-jitter, low-skew clock buffer and level translator manufactured by Skyworks Solutions. It accepts a single-ended input signal and generates four differential HCSL outputs. The device operates with a core supply voltage of 1.8 V, 2.5 V, or 3.3 V, while the output driver supply (VDDO) is set to 2.5 V for this specific part number. It supports an input frequency range of 5 MHz to 250 MHz. Key electrical characteristics include a typical additive jitter of 150 fs RMS, an output-to-output skew of 100 ps, and a typical propagation delay of 2.5 ns. The component is housed in a 24-lead, 4 x 4 mm QFN package.

Clock Buffers, Drivers Feature Summary

• Converts single-ended input to four differential HCSL outputs
• Low jitter performance with 150 fs RMS typical additive jitter
• Independent core and output supply voltages (1.8/2.5/3.3 V)
• Glitchless output enable control via OEB pin

Clock Buffers, Drivers Applications

• High-speed clock distribution networks
• Ethernet switch and router systems
• Telecom line cards
• SONET/SDH equipment

Clock Buffers, Drivers Procurement Notes

Verify that the ordering suffix 'GMR' corresponds to tape and reel packaging as specified in the datasheet. Confirm the output supply voltage requirement matches the system design, as this variant is configured for 2.5 V HCSL outputs. Ensure the central ground pad is properly connected to the PCB ground plane for thermal management and electrical functionality.

Clock Buffers, Drivers Selection Notes

Select this part when a single-ended clock source needs to be distributed to four differential HCSL loads. The fixed configuration limits flexibility compared to programmable generators; verify that the 5–250 MHz frequency range meets the application requirements. Check if the 100 ps skew specification is sufficient for the target timing constraints.

Clock Buffers, Drivers Part Context

This component belongs to the Si5330 family of low-jitter clock buffers. The 'M' suffix indicates a single-ended input with differential HCSL outputs. The 'B00232' code specifies the 2.5 V output driver voltage configuration. The 'GMR' suffix denotes the reel packaging format, distinguishing it from the tray-packaged 'GM' version.

Clock Buffers, Drivers Replacement Considerations

The SI5330M-B00232-GM is a parameter-equivalent alternative packaged in trays instead of tape and reel. Other Si5330 variants with different input/output configurations are not direct replacements without schematic changes.