HMC744LC3TR-R5

Clock Buffers, Drivers Overview

The HMC744LC3TR-R5 is a 1:2 fanout buffer supporting data transmission rates up to 14 Gbps and clock frequencies as high as 14 GHz. It features internally terminated CML inputs and source-terminated CML outputs, allowing for AC or DC coupling. The device operates from a single +3.3 V supply with typical power consumption of 287 mW. Key electrical parameters include a propagation delay of 120 ps, rise/fall times of 22/20 ps, and a programmable output voltage swing ranging from 600 mV to 1100 mV via the VR pin. It is housed in a 16-lead ceramic SMT package.

Clock Buffers, Drivers Feature Summary

• Supports data rates up to 14 Gbps and clock frequencies up to 14 GHz
• Features internally terminated 50 Ohm CML inputs and source-terminated CML outputs
• Includes a programmable output level control pin (VR) for signal optimization
• Operates on a single +3.3 V supply with low power consumption

Clock Buffers, Drivers Applications

• RF ATE Applications
• Broadband Test & Measurement
• Serial Data Transmission up to 14 Gbps
• Clock Buffering up to 14 GHz

Clock Buffers, Drivers Procurement Notes

Verify component authenticity through authorized Analog Devices channels. Confirm RoHS compliance status and MSL rating prior to assembly. Ensure proper ESD handling procedures are followed during storage and installation due to the device's sensitivity class.

Clock Buffers, Drivers Selection Notes

Select this component for high-speed differential clock distribution requiring minimal skew. The VR pin allows adjustment of output amplitude to compensate for trace loss. Ensure the design accommodates the 16-VFCQFN exposed pad thermal requirements and 50 Ohm impedance matching for both input and output lines.

Clock Buffers, Drivers Part Context

This part belongs to the HMC744 series of high-speed digital logic buffers manufactured by Analog Devices Inc. It is available in a tape and reel packaging format suitable for automated surface mount assembly processes.

Clock Buffers, Drivers Replacement Considerations

HMC744LC3

Clock Buffers, Drivers FAQ

How is the output voltage swing controlled?

The output voltage swing is programmable between 600 mV and 1100 mV by applying a specific voltage to the VR pin.

What is the maximum propagation delay?

The typical propagation delay is 120 ps.

Can the inputs be DC coupled?

Yes, the differential CML inputs may be either AC or DC coupled.