SIT92184AA-Y

Clock Buffers, Drivers Overview

The SiT92184AA-Y is an Automotive Grade 1, AEC-Q100 qualified high-performance LVCMOS clock buffer. It provides a 1:4 output configuration with a maximum operating frequency of 200 MHz and supports supply voltages from 1.8 V to 3.3 V. The device features very low additive phase jitter of less than 50 fs RMS and pin-to-pin skew under 50 ps. Packaged in an 8-pin, 2 x 2 mm DFN, it includes integrated serial termination for 50 Ω channels and synchronous glitch-free output enable functionality.

Clock Buffers, Drivers Feature Summary

• High-performance 1:4 LVCMOS clock buffer with FMAX = 200 MHz
• Very low additive phase jitter (<50 fs RMS) and pin-to-pin skew (<50 ps)
• Integrated serial termination for 50 Ω channel impedance
• Synchronous glitch-free output enable (OE) function

Clock Buffers, Drivers Applications

• Automotive Applications
• Clock distribution networks requiring low jitter
• Systems utilizing 3.3 V tolerant input clocks

Clock Buffers, Drivers Procurement Notes

Verify the package type matches the required land pattern. Confirm that the 8-DFN 2x2mm footprint aligns with the PCB design guidelines provided in the datasheet. Ensure the power supply sequencing meets the requirements for VDD levels above 1.8V.

Clock Buffers, Drivers Selection Notes

Select this component when automotive reliability (AEC-Q100 Grade 1) and low jitter are critical. The 3.3 V tolerant CLKIN input allows direct interfacing with higher voltage logic without level shifting. Verify current consumption against the specific operating frequency and load capacitance tables.

Clock Buffers, Drivers Part Context

The SiT92184 family consists of high-performance LVCMOS clock buffers designed for demanding timing applications. The AA suffix indicates the Automotive Grade 1 variant, which operates reliably across the -40°C to +125°C temperature range. This series replaces discrete buffering solutions with a single, compact IC.

Clock Buffers, Drivers Replacement Considerations

This is a specialized automotive-grade buffer. Direct replacements must match the 1:4 LVCMOS topology, 200 MHz speed, and 8-DFN package. Verify if alternative suppliers offer AEC-Q100 qualification and comparable jitter specifications.

Clock Buffers, Drivers FAQ

What is the maximum operating frequency?

The SiT92184 supports a maximum frequency (FMAX) of 200 MHz.

Does the device support glitch-free switching?

Yes, it features a synchronous glitch-free output enable (OE) function to eliminate incorrect output clock cycles during enable/disable transitions.

What is the input voltage tolerance?

The CLKIN input is 3.3 V tolerant, allowing it to accept clock signals up to 3.3 V even if the core supply (VDD) is lower.