DS160PR421RUAT

Signal Buffers, Repeaters, Splitters Overview

The DS160PR421RUAT is a four-channel linear redriver with an integrated 2:1 multiplexer designed for PCIe 4.0 and other high-speed interfaces up to 16 Gbps. It operates on a single 3.3 V supply rail, consuming approximately 120 mW per channel in active mode. The device features continuous-time linear equalizers (CTLE) providing up to 17 dB of boost at 8 GHz to compensate for inter-symbol interference. Key electrical parameters include a typical latency of 80 ps, additive random jitter of 70 fs, and input/output differential return loss of -13 dB and -15 dB respectively. It supports SMBus/I2C or pin control configuration and functions within an industrial temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Integrates a 2:1 multiplexer with four-channel linear redriver capabilities for signal integrity extension.
• Features continuous-time linear equalizers (CTLE) to open closed eyes caused by interconnect medium losses.
• Supports automatic receiver detection and seamless link training compatible with PCIe specifications.
• Configurable via strap pins or SMBus/I2C interface for flexible system integration.

Signal Buffers, Repeaters, Splitters Applications

• Desktop PC/motherboard
• Rack server and microserver/tower server
• High performance computing hardware accelerators
• Network attached storage and host bus adapter cards

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix RUAT corresponds to the WQFN-42 package and cut tape/reel packaging format as defined in the manufacturer's orderable addendum. Confirm that the component meets the required RoHS compliance standards and humidity sensitivity levels specified in the datasheet before finalizing procurement documentation.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when extending PCIe 4.0 links requiring low-latency linear equalization and multiplexing functionality. Ensure the design accommodates the 3.3 V supply requirement and thermal dissipation needs for the WQFN-42 package. Verify compatibility with the system's control interface strategy, whether utilizing pin strapping or SMBus/I2C communication for dynamic configuration.

Signal Buffers, Repeaters, Splitters Part Context

The DS160PR421 belongs to Texas Instruments' DS160PR4xx series of high-speed interface solutions. It serves as a companion to the DS160PR412 demultiplexer, enabling bidirectional signal routing in complex PCIe topologies. This family addresses the increasing signal integrity challenges associated with higher data rates and longer PCB traces in modern computing infrastructure.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The DS160PR421RUAR is a functionally equivalent alternative within the same product family, differing primarily in packaging quantity and reel specifications rather than electrical performance or pinout compatibility.