DS64BR111SQ/NOPB

Signal Buffers, Repeaters, Splitters Overview

The DS64BR111SQ/NOPB is a dual-channel ultra-low power repeater manufactured by Texas Instruments, designed for SAS and SATA signal integrity applications. It supports data rates up to 6.4 Gbps with an input propagation delay of 230 ps. The device operates on a single supply voltage ranging from 2.375 V to 3.6 V, drawing a typical operating current of 50 mA. It features CML input and output interfaces and includes input equalization and output de-emphasis capabilities. Housed in a compact 24-WQFN (4x4 mm) package with exposed pad, it functions within a temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides signal regeneration for high-speed serial links through dual-channel repeater functionality.
• Integrates adaptive input equalization to compensate for channel loss and frequency-dependent attenuation.
• Includes programmable output de-emphasis to optimize signal eye diagrams and reduce inter-symbol interference.

Signal Buffers, Repeaters, Splitters Applications

• SAS (Serial Attached SCSI) backplane connections
• SATA (Serial ATA) storage interface extensions
• Peripheral I/O signal buffering

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix against the datasheet to ensure compatibility with required packaging options such as cut tape or reel. Confirm that the component meets RoHS3 standards and check moisture sensitivity level ratings prior to soldering. Ensure the ordering part number matches the exact electrical specifications required for the target design environment.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing systems requiring low power consumption alongside signal integrity maintenance for SAS or SATA protocols. Consider the 24-WQFN package constraints for PCB layout and thermal management. Evaluate the need for input equalization and de-emphasis features based on the specific trace length and material characteristics of the application board.

Signal Buffers, Repeaters, Splitters Part Context

This device belongs to the DS64BR111 series of ultra-low power repeaters from Texas Instruments. It is engineered to extend cable and backplane distances in storage and peripheral interfaces while maintaining low power dissipation. The series addresses the growing demand for energy-efficient signal conditioning in high-density electronic systems.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Publicly documented substitutes include the PI3EQX5801ZDEX from Diodes Incorporated. Verify pinout compatibility and electrical parameter alignment before substitution.