LMX1214RHAT

Overview

The LMX1214RHAT is a low-noise, high-frequency clock buffer and divider manufactured by Texas Instruments. It supports input frequencies from 300 MHz to 18 GHz and provides four differential output clocks with ultra-low noise characteristics. The device operates on a supply voltage range of 2.4 V to 2.6 V and is housed in a 40-pin VQFN (6x6 mm) package. It features very low skew for precise clock distribution and includes an auxiliary output. The component is designed for applications requiring high-performance signal integrity at microwave frequencies.

Feature Summary

• Ultra-low noise floor performance for critical RF applications
• High-frequency operation supporting up to 18 GHz input
• Four differential outputs with very low skew distribution
• Integrated auxiliary output capability

Applications

• Radar systems
• Test and measurement equipment
• Telecommunications infrastructure

Procurement Notes

Verify the specific suffix RHAT corresponds to the required tape-and-reel packaging configuration. Confirm the operating temperature range matches your environmental specifications. Ensure the 40-VQFN footprint aligns with your PCB layout constraints. Validate that the 2.4V to 2.6V supply requirement fits your power design. Check for any recent lifecycle status updates or obsolescence notices from the manufacturer.

Selection Notes

Select this component when ultra-low phase noise is critical for system performance. Consider the 18 GHz maximum frequency limit against your application requirements. Evaluate the 40-VQFN package size for space-constrained designs. Compare the low skew performance against other buffers if timing precision is paramount. Ensure compatibility with the required supply voltage range of 2.4V to 2.6V.

Part Context

The LMX1214 belongs to Texas Instruments' family of high-frequency clock distribution devices. It is engineered for demanding RF environments where signal purity is essential. The RHAT suffix indicates a specific reel-based packaging option suitable for automated assembly processes. This part complements broader PLL and oscillator solutions within the TI portfolio.

Replacement Considerations

Consult official Texas Instruments documentation for verified cross-reference part numbers. Do not assume functional equivalence with generic buffer ICs without detailed parameter comparison. Verify pin-to-pin compatibility if substituting within existing designs.