SI5330H-B00221-GMR

Clock Buffers, Drivers Overview

The SI5330H-B00221-GMR is a low-jitter, low-skew clock buffer and level translator from Skyworks Solutions. It accepts a differential input clock signal and generates eight single-ended SSTL 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 SSTL compatibility. It supports input frequencies up to 350 MHz and features an additive jitter of 150 fs RMS typical. The component is housed in a 24-lead, 4 x 4 mm QFN package.

Clock Buffers, Drivers Feature Summary

• Generates eight single-ended SSTL outputs from a differential input
• Supports input frequencies up to 350 MHz
• Features 150 fs RMS typical additive jitter and 100 ps output-output skew
• Includes Loss of Signal (LOS) indicator and glitchless Output Enable (OEB)

Clock Buffers, Drivers Applications

• High-speed clock distribution
• Ethernet switch/router
• PCI Express 2.0/3.0

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'GMR' indicates tape and reel shipment media as specified in the datasheet. Confirm the output driver supply voltage configuration matches the 2.5 V SSTL requirement. Ensure the central ground pad is properly connected to the system ground plane for correct operation.

Clock Buffers, Drivers Selection Notes

Select this part when a differential input source must drive eight SSTL loads. The VDDO supply pin must be connected to 2.5 V to achieve the correct SSTL output voltage levels. Verify that the input frequency does not exceed 350 MHz for SSTL output formats.

Clock Buffers, Drivers Part Context

This component belongs to the Si5330 family of low-jitter clock buffers. The 'H' variant specifically denotes differential input to single-ended SSTL output functionality. The 'B00221' code specifies the 2.5 V output supply configuration, and 'GMR' designates the reel packaging format.

Clock Buffers, Drivers Replacement Considerations

Other Si5330 variants with different output formats or supply voltages may serve as alternatives if the SSTL interface or voltage levels differ. Consult Table 11 in the datasheet for specific functional block diagrams corresponding to other orderable part numbers.