HMC911LC4B

Overview

The HMC911LC4B is a broadband time delay element from Analog Devices, operating within a frequency range of DC to 24 GHz. It provides a continuous adjustable delay range of 70 ps to 75 ps, controlled linearly via differential voltage inputs (VDCP and VDCN) with a modulation bandwidth of 1.6 Hz. The device features integrated constant amplitude differential outputs, adjustable via the VAC pin, with a typical swing of 780 mV p-p at 10 GHz. It operates on a single 3.3 V supply, drawing 530 mA, and includes internal temperature compensation to minimize drift. Packaged in a 24-pin LCC-24 ceramic lead-free chip carrier, it supports both AC and DC coupling.

Feature Summary

• Provides continuous broadband time delay control across a wide frequency spectrum up to 24 GHz
• Features linear monotonic delay control relative to differential control voltage inputs
• Includes internal temperature compensation and bias circuits to reduce delay variation over temperature
• Offers integrated constant magnitude differential output voltage with adjustable amplitude

Applications

• Clock and data synchronization systems
• Transponder design architectures
• Serial data transmission links supporting rates up to 32 Gbps
• Broadband test and measurement instrumentation
• RF ATE applications

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to storage and handling. Ensure proper ESD protection measures are implemented during assembly due to the surface mount package type. Review current supply status as availability may be limited or subject to factory special orders.

Selection Notes

Select this component for applications requiring precise, voltage-controlled timing adjustments in high-frequency environments. Consider the 24-pin LCC package for thermal management and signal integrity needs. Evaluate the 530 mA power consumption against system thermal constraints. Ensure the control interface supports the required 1.6 Hz modulation bandwidth for dynamic delay tuning.

Part Context

This part belongs to the HMC911 series of broadband delay lines designed for RF and microwave applications. It complements other timing and clock distribution components such as the ADCLK907 and AD9513. The device is distinct from video amplifiers like the HMC913LC4B and clock buffers like the HMC940LC4B, focusing specifically on variable time delay functionality rather than signal amplification or distribution.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for potential alternatives if this specific package or parameter set is unavailable.