DS42MB200TSQ

Signal Buffers, Repeaters, Splitters Overview

The DS42MB200TSQ is a dual-channel high-speed multiplexer and buffer manufactured by Texas Instruments. It supports data rates up to 4.25 Gbps with CML input and output signaling. The device integrates two independent 2:1 multiplexers and two 1:2 demultiplexers within a single package. It operates on a supply voltage ranging from 3.135 V to 3.465 V, drawing approximately 289 mA of operating current. The component is housed in a 48-pin WQFN (7x7 mm) package with exposed pad for thermal management. It functions as a non-inverting signal conditioner suitable for demanding digital interconnect applications.

Signal Buffers, Repeaters, Splitters Feature Summary

• Integrates dual channels capable of simultaneous 2:1 multiplexing and 1:2 demultiplexing operations
• Supports high-speed CML signaling interfaces for robust data transmission
• Includes built-in signal conditioning features such as input equalization and output pre-emphasis

Signal Buffers, Repeaters, Splitters Applications

• High-speed serial link infrastructure equipment
• Data communication systems requiring signal regeneration and routing
• Test and measurement instrumentation interfaces

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix configuration when sourcing replacements, as the TSQ variant indicates automotive qualification standards distinct from standard commercial grades. Confirm RoHS compliance status, as the TSQ version may differ from the NOPB equivalent regarding environmental directives. Ensure that the obsolete status of this specific part number is accounted for in long-term supply chain planning and design-in strategies.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when dual-channel CML muxing at 4.25 Gbps is required within a compact footprint. Compare against the DS42MB200TSQ/NOPB for identical electrical performance if commercial grade suffices. Evaluate power consumption requirements against the 289 mA typical draw. Consider the 48-WQFN package constraints for PCB layout and thermal dissipation capabilities during the initial schematic capture phase.

Signal Buffers, Repeaters, Splitters Part Context

This device belongs to the DS42MB200 series of high-speed multiplexers designed for complex signal routing tasks. It complements lower-speed variants like the DS25MB200 and DS15MB200 by offering higher bandwidth capabilities. The series targets applications needing reliable signal integrity over extended traces or through multiple switching stages in high-performance computing environments.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The DS42MB200TSQ/NOPB is listed as a direct replacement substitute. Verify pinout compatibility and functional equivalence before transitioning designs. Note that the NOPB suffix typically denotes commercial temperature range and RoHS compliance, differing from the automotive-grade TSQ designation.