HMC856LC5TR-R5

Overview

The HMC856LC5TR-R5 is a wideband digital time delay device manufactured by Analog Devices Inc. It features a 5-bit digital control interface designed for timing compensation and clock skew management in high-speed serial logic applications. The component supports data rates up to 28 Gbps with a propagation delay range of approximately 92 ps and a resolution of 3 ps. It operates from a single −3.3 V supply, consuming 610 mW typical power. The device utilizes CML inputs and outputs, housed in a 5 mm × 5 mm, 32-terminal ceramic leadless chip carrier (LCC) package.

Feature Summary

• Supports data rates up to 28 Gbps with fast rise/fall times
• Features 5-bit digital control for programmable delay adjustment
• Includes an output level control pin for signal optimization
• Operates on a single negative supply voltage

Applications

• SONET OC-192 systems
• High speed serial logic circuits
• Clock and data recovery modules
• Broadband test and measurement equipment
• Frequency synthesis and matched timing

Procurement Notes

Verify the specific ordering suffix TR-R5 indicates reel packaging when sourcing components. Confirm that the LCC package variant matches the required footprint for the target PCB design. Ensure compatibility with the specified −3.3 V supply rail and check for moisture sensitivity level requirements during storage and assembly processes.

Selection Notes

Select this component for applications requiring precise digital delay adjustments at multi-gigabit speeds. Consider the 50 Ω internal terminations for direct CML interfacing without external resistors. Evaluate the VR pin requirements if variable output swing or loss compensation is necessary for the specific link budget.

Part Context

This part belongs to the HMC856 series of broadband time delay devices. It shares functional similarities with other Hittite Microwave products now under Analog Devices, focusing on high-frequency signal integrity and timing alignment. The LC5 designation typically refers to the specific ceramic leadless package configuration used in this product line.

Replacement Considerations

HMC856LC5 and HMC856LC5TR are functionally equivalent parts within the same family. Verify package orientation and pinout consistency before substitution. Ensure the replacement part meets the same operating temperature range and moisture sensitivity level ratings.