MAX4950ACTX+T

Signal Buffers, Repeaters, Splitters Overview

The MAX4950ACTX+T is a dual-channel PCI Express equalizer and redriver manufactured by Analog Devices Inc. under the Maxim Integrated brand. Designed for high-speed serial data transmission, this component operates within a supply voltage range of 2.375 V to 3.63 V. It features a maximum data rate capability of 5 Gbps per channel, supporting PCIe Gen1 and Gen2 standards. The device is housed in a compact 36-lead TQFN package with an exposed pad, measuring 6 mm x 6 mm. It includes integrated programmable continuous time linear equalization (CTLE) and decision feedback equalization (DFE) to compensate for channel loss.

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual-channel architecture providing independent signal processing paths for simultaneous data transmission
• Integrated continuous time linear equalization and decision feedback equalization to mitigate high-frequency signal attenuation
• Supports standard PCI Express signaling rates for Gen1 and Gen2 compliance
• Compact surface-mount packaging designed for space-constrained motherboard layouts

Signal Buffers, Repeaters, Splitters Applications

• PCI Express switch and retimer designs
• High-performance server and workstation motherboards
• Storage area network (SAN) infrastructure equipment

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix 'ACTX+T' against the manufacturer's current datasheet revision to confirm pinout compatibility and lead-free status. Confirm that the operating temperature grade matches the system requirements, as industrial variants may differ from commercial grades. Ensure the PCB footprint aligns with the 36-lead TQFN exposed pad thermal requirements specified in the official mechanical drawings.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing systems requiring signal integrity restoration for dual-lane PCI Express connections up to 5 Gbps. Evaluate the available channel length and copper trace losses to determine if the internal equalization settings are sufficient or require external tuning. Consider the power consumption profile relative to the system's thermal budget, as active equalization draws current proportional to the data rate and load conditions.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the MAX4950 family of PCI Express equalizers and redrivers. It serves as a critical interface component between the host processor and peripheral devices, ensuring signal fidelity over long traces. The dual-channel variant offers a cost-effective solution for applications requiring two independent high-speed lanes without the complexity of quad-channel devices.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Publicly confirmed substitute part numbers include the MAX4950AEXI+T and MAX4950ACTX+T. Verify electrical specifications and package dimensions before substitution to ensure compatibility with existing board layouts and signal integrity requirements.