ASNT5121E-KMC

Overview

The ASNT5121E-KMC is a high-speed SiGe integrated circuit functioning as a broadband data distributor with one differential input and three phase-matched differential outputs. It supports data rates from DC to 64 Gbps using fully differential CML interfaces with internal 50-ohm termination. The device operates on a single +3.3V or -3.3V power supply, consuming 710 mW. Key electrical parameters include an output swing of 350 mV single-ended, rise/fall times of 8 ps typical, and peak-to-peak output jitter of 1 ps. It is housed in a custom 24-pin CQFP package designed for industrial temperature ranges.

Feature Summary

• Provides active broadband signal splitting with matched phase delays across all three outputs
• Features fully differential CML input and output interfaces with integrated 50-ohm termination
• Operates on a single positive or negative 3.3V power supply configuration
• Fabricated in SiGe technology for high performance and reliability

Applications

• High-speed measurement and test equipment
• Broadband data distribution systems
• Signal splitting for multi-channel high-speed interfaces

Procurement Notes

Verify the specific ordering suffix KMC corresponds to the 24-pin CQFP package variant. Confirm that the component meets RoHS 2011/65/EU standards if environmental compliance is required. Ensure the supplier provides the official datasheet Rev. 1.1.2 dated May 2020 for accurate pinout and electrical specifications during acquisition.

Selection Notes

Select this component when a single high-speed differential signal must be distributed to three separate paths with minimal skew. Ensure the system design accommodates the required 3.3V power supply polarity and thermal dissipation needs via the center heat slug. Verify that the receiving devices support CML logic levels and the specified 350 mV output swing for optimal signal integrity.

Part Context

This part belongs to the ADSANTEC ASNT51xx series of high-speed SiGe ICs. It serves as a specialized data distributor within their portfolio of broadband amplifiers and multiplexers. The E suffix typically denotes specific electrical characteristics or revisions within the family, while the KMC suffix identifies the specific package type and pin configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should evaluate other ADSANTEC distributors or amplifiers based on matching data rate, interface type, and package dimensions.