ASNT5121-KHC

Overview

The ASNT5121-KHC is a high-speed broadband signal distributor fabricated in SiGe technology, designed for active data and clock signal splitting. It features one differential CML input port and three phase-matched differential CML output ports. The device supports data rates up to 50 Gbps and frequencies up to 32 GHz. It operates on a single +3.3V or -3.3V power supply with a typical power consumption of 580 mW. The component utilizes a custom 24-pin CQFN package with an integrated heat slug for thermal management.

Feature Summary

• Provides active broadband splitting of high-speed data and clock signals with matched phase delays across all outputs.
• Features fully differential CML interfaces with internal 50-ohm termination to Vcc for simplified integration.
• Utilizes SiGe fabrication technology to ensure high performance, yield, and reliability over industrial temperature ranges.

Applications

• High-speed measurement and test equipment
• Broadband signal distribution networks
• Clock signal routing in high-speed digital systems

Procurement Notes

Verify the specific revision number (Rev 1.0.2) against the latest manufacturer documentation to ensure compatibility with current design requirements. Confirm that the custom 24-pin CQFN package footprint matches the PCB layout, particularly regarding the center heat slug soldering requirements for proper thermal dissipation and electrical connection.

Selection Notes

Select this component when a low-jitter, phase-matched signal split is required for frequencies up to 32 GHz. Ensure the system design accommodates the specific power supply configuration, as AC termination is mandatory for I/Os if using a positive supply voltage. Verify that the input common mode voltage aligns with the selected DC-coupling or AC-coupling mode for optimal performance.

Part Context

The ASNT5121-KHC belongs to ADSANTEC's portfolio of high-speed broadband integrated circuits. It is part of a family of SiGe-based devices engineered for demanding applications requiring precise signal integrity and timing accuracy. This specific model functions as a 1-to-3 distributor, complementing other multiplexer and serializer solutions offered by the manufacturer.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Designers should evaluate ADSANTEC's other signal distributors or comparable SiGe components from alternative manufacturers only after verifying interface compatibility and electrical specifications.