SI5330M-B00233-GM

Clock Buffers, Drivers Overview

The SI5330M-B00233-GM 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 (range 1.71–1.98 V) and an independent output driver supply of 1.8 V. It supports input frequencies from 5 to 250 MHz. Key electrical specifications include a typical propagation delay of 2.5 ns, maximum 4.0 ns, output-output skew of 100 ps, and typical additive jitter of 150 fs RMS. The component is housed in a 24-lead, 4 x 4 mm QFN package.

Clock Buffers, Drivers Feature Summary

• Single-ended to differential conversion: Accepts single-ended input and provides four differential HCSL outputs.
• Low jitter performance: Typical additive phase jitter of 150 fs RMS (12 kHz–20 MHz).
• Independent supply domains: Core supply (VDD) and output driver supply (VDDO) are separate, allowing flexible voltage levels.
• Glitchless control: Output Enable (OEB) pin allows glitch-free disabling/enabling of all outputs.

Clock Buffers, Drivers Applications

• High-speed clock distribution networks
• Ethernet Switch/Router systems
• SONET / SDH equipment

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'GMR' indicates tape and reel packaging as per datasheet conventions. Confirm the specific voltage configuration (1.8 V core and output) matches the system requirements. Check for RoHS compliance status on the manufacturer's website. Ensure the 24-QFN package dimensions align with the PCB land pattern specifications provided in the datasheet.

Clock Buffers, Drivers Selection Notes

Select this part when a single-ended clock source must be distributed to four differential HCSL loads. The fixed 1.8 V output voltage requirement distinguishes it from other variants like SI5330M-B00231-GM (3.3 V) or SI5330M-B00232-GM (2.5 V). Ensure the input frequency does not exceed 250 MHz. Verify that the 100 ps output skew meets the timing constraints of the destination devices.

Clock Buffers, Drivers Part Context

This component belongs to the Si5330 family of low-jitter clock buffers. The 'M' suffix denotes a single-ended input with differential HCSL outputs. The 'B00233' code specifies the 1.8 V output voltage variant. Other family members support different input types (differential vs. single-ended) and output formats (LVPECL, LVDS, CMOS, etc.).

Clock Buffers, Drivers Replacement Considerations

Direct functional replacements within the same voltage/output format include SI5330M-B00231-GM (3.3 V HCSL) and SI5330M-B00232-GM (2.5 V HCSL), provided the output voltage compatibility is adjusted. For different input/output configurations, consult Table 11 in the datasheet for equivalent Si5330 variants.