ASNT5121B-KMC

Overview

The ASNT5121B-KMC is a high-speed SiGe clock distributor fabricated by Advanced Science And Novel Technology Company, Inc. It provides active broadband clock signal splitting with one differential input and three phase-matched differential outputs. The device operates from DC to 35 GHz with a typical output jitter of 200 fs peak-to-peak. Power consumption is 760 mW under a single +3.3V or -3.3V supply. It utilizes fully differential CML interfaces with internal 50 Ohm termination and is housed in a custom 24-pin CQFP package.

Feature Summary

• Provides active broadband clock signal splitting for high-speed measurement and test equipment
• Features matched phase delays across all three differential output ports
• Supports flexible I/O configurations including AC/DC coupling and single-ended operation

Applications

• High-speed measurement and test equipment
• Broadband clock distribution networks
• Phase-matched multi-channel clocking systems

Procurement Notes

Verify the specific ordering suffix against official ADSANTEC documentation to confirm package type and pinout configuration. Ensure that the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity and compliance with RoHS standards. Confirm that the received units match the exact part number designation before integration into designs.

Selection Notes

Select this component when a single high-frequency clock source requires distribution to three separate destinations with minimal phase skew. Consider the thermal requirements of the custom CQFP package, as the center heat slug must be soldered to the appropriate power plane for effective dissipation. Evaluate whether positive or negative supply configurations align with the system's existing voltage rails and termination strategies.

Part Context

This component belongs to the ASNT5121 series of high-speed SiGe integrated circuits designed for precision timing applications. Manufactured using silicon-germanium technology, it offers high performance and reliability suitable for demanding environments. The device represents a specialized solution for maintaining signal integrity in broadband digital systems requiring precise clock synchronization.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Designers should consult ADSANTEC technical support for potential cross-references or updated family members that may offer similar functionality if this specific variant becomes unavailable.

FAQ

What is the maximum operating frequency of the ASNT5121B-KMC?

The device supports a frequency range from DC up to 35 GHz.

How many differential output ports does the IC provide?

It features three differential amplified output signal ports (c0p/c0n, c1p/c1n, c2p/c2n).

Can the inputs be AC coupled?

Yes, the I/Os support AC/DC coupling modes, where the input termination automatically provides the required common mode voltage in AC-coupling scenarios.