HMC724LC3TR

Clock Buffers, Drivers Overview

The HMC724LC3TR is a 1:2 fanout buffer designed for data transmission rates up to 14 Gbps and clock frequencies as high as 14 GHz. It features differential CML inputs and outputs, with all signals DC coupled and terminated on-chip with 50-ohm resistors to ground or the positive supply. The device operates from a single -3.3 V power supply (range: -3.6 V to -3.0 V) and dissipates approximately 300 mW. Key electrical specifications include a propagation delay of 110 ps, rise/fall times of 19/18 ps, and an output amplitude of 1100 mVp-p differentially. It is housed in a RoHS-compliant 16-lead ceramic SMT package measuring 3x3 mm.

Clock Buffers, Drivers Feature Summary

• Supports data rates up to 14 Gbps and clock frequencies up to 14 GHz
• Differential CML input/output with internal 50-ohm termination
• Fast rise and fall times of 19 ps and 18 ps respectively
• Low propagation delay of 110 ps with less than 2 ps data skew

Clock Buffers, Drivers Applications

• Serial data transmission up to 14 Gbps
• Clock buffering up to 14 GHz
• 16 G Fiber Channel applications
• RF ATE applications
• Broadband test and measurement equipment

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix 'TR' corresponds to the Tape & Reel packaging format when sourcing components. Confirm that the base part number HMC724LC3 matches the required ceramic package variant. Ensure compatibility with the specified -3.3 V negative supply voltage and check for any updated datasheet revisions that may affect pin definitions or absolute maximum ratings.

Clock Buffers, Drivers Selection Notes

Select this component for high-speed clock distribution where low jitter and fast edge rates are critical. The device requires AC or DC coupling depending on the system interface; ensure external circuits provide appropriate 50-ohm termination. Verify that the PCB layout supports RF design techniques, including direct connection of ground leads to the ground plane and proper via placement for thermal and electrical grounding.

Clock Buffers, Drivers Part Context

The HMC724LC3 belongs to the High Speed Logic family from Analog Devices (formerly Hittite Microwave Corporation). It is specifically engineered as a fanout buffer to drive multiple loads from a single source while maintaining signal integrity at multi-gigabit speeds. The 'LC3' designation typically indicates the leadless ceramic surface mount package configuration.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Analog Devices resources for potential cross-references or newer generation buffers with similar electrical characteristics.