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Product Detailed Parameters
- Description：IC REDRIVER PCIE 8CH 54WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buffer, ReDriver
- Applications：PCIe
- Input：CML
- Output：CML
- Data Rate (Max)：12.5Gbps
- Number of Channels：8
- Delay Time：200ps
- Signal Conditioning：Input Equalization, Output De-Emphasis
- Voltage - Supply：2.375V ~ 3.6V
- Current - Supply：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：54-WFQFN Exposed Pad
- Supplier Device Package：54-WQFN (10x5.5)
- Capacitance - Input：10 pF
- Grade：-
- Qualification：-
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Overview
The DS125BR401SQ/NOPB is a four-channel PCI Express redriver manufactured by Texas Instruments. It supports data rates of 2.5, 5.0, and 8.0 Gbps for PCIe Gen1, Gen2, and Gen3 applications. The device operates on a single 2.5 V or 3.3 V power supply and features input equalization and output de-emphasis to compensate for channel loss. It utilizes CML inputs and outputs with a 200 ps delay. The component is housed in a 54-WQFN package (10x5.5 mm) and functions within an operating temperature range of -40°C to +85°C.
Feature Summary
- Four independent channels designed for high-speed signal regeneration
- Supports multiple PCIe generation data rates including 2.5, 5.0, and 8.0 Gbps
- Integrated adaptive equalization and de-emphasis capabilities
- Compatible with standard CML signaling interfaces
Applications
- PCIe front port interconnects
- Backplane signal conditioning
- Peripheral I/O signal integrity enhancement
Procurement Notes
Verify the specific suffix against official documentation to confirm operational parameters. The SQ variant indicates industrial temperature range compliance. Confirm package marking and date codes match current production revisions. Ensure ESD handling protocols are followed during assembly due to moisture sensitivity classification.
Selection Notes
Select this component when designing systems requiring passive signal regeneration for PCIe links up to 8.0 Gbps. It serves as a direct replacement for legacy repeaters in server and storage architectures. Evaluate board layout constraints regarding the 54-pin WQFN footprint and thermal dissipation requirements for continuous operation at maximum data rates.
Part Context
This part belongs to the DS125BR401 family of interface signal buffers and repeaters. It is distinct from retimer variants like the DS125RT410 which include clock data recovery. The device focuses on linear amplification and equalization rather than full signal re-timing, making it suitable for cost-sensitive high-speed interconnect designs.
Replacement Considerations
The DS125BR401A is a documented successor within the same family offering updated specifications. Verify pin compatibility and electrical characteristics before substituting older manufacturing lots.
