SIT92110AI-X

Clock Buffers, Drivers Overview

The SiTime SIT92110AI-X is a 10-output low-jitter clock fan-out buffer designed for high-frequency clock and data distribution. It features a 3:1 input multiplexer with primary, secondary, and crystal inputs, distributing the selected signal to ten LVCMOS drivers. The device supports core supply voltages of 3.3 V, 2.5 V, or 1.8 V, and output supplies of 3.3 V, 2.5 V, 1.8 V, or 1.5 V. It operates within an ambient temperature range of -40°C to 85°C and is housed in a 32-pin, 5 mm x 5 mm QFN package.

Clock Buffers, Drivers Feature Summary

• Additive jitter performance of 50 fs RMS
• Typical output skew between clock outputs is 30 ps
• Supports LVPECL, LVDS, LVCMOS, SSTL, HCSL, and XTAL waveforms
• Crystal frequencies from 8 MHz to 50 MHz supported

Clock Buffers, Drivers Applications

• Low jitter clock distribution
• High frequency clock/data distribution
• Driving 50 Ω series or parallel terminated transmission lines

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'X' against the manufacturer's official documentation to confirm specific tape-and-reel packaging requirements. Ensure the selected core (VDD) and output (VDDO) voltage levels match the design specifications, as the device supports multiple independent supply domains without sequencing requirements.

Clock Buffers, Drivers Selection Notes

Select this component when a 10-output LVCMOS buffer with ultra-low additive jitter is required. The device allows level translation via independent core and output supply voltages. Input selection is controlled by pin strapping, supporting universal differential or single-ended inputs up to 250 MHz.

Clock Buffers, Drivers Part Context

The SIT92110 belongs to SiTime's family of high-performance clock buffers. It integrates a 3:1 input multiplexer and optional crystal oscillator input into a compact 32-pin QFN package. The AI suffix indicates industrial temperature grade (-40°C to 85°C), while the X suffix typically denotes reel packaging configuration.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.