MAX4928AETN+T

Video Processing Overview

The MAX4928AETN+T is a high-speed passive switch designed to route PCI Express and DisplayPort signals between two destinations in desktop or laptop PCs. It integrates six bidirectional double-pole/double-throw (DPDT) analog switches within a single 56-pin TQFN package. The device operates from a single +3.3V power supply with a maximum supply current of 850µA. It supports PCIe Gen I, Gen II, and DisplayPort data rates exceeding 5Gbps, featuring excellent return loss greater than 12dB at 2.5GHz. The component functions over an extended temperature range of -40°C to +85°C.

Video Processing Feature Summary

• Integrates six bidirectional DPDT analog switches for routing differential signals
• Supports high-speed data transmission for PCIe Gen I/II and DisplayPort protocols
• Utilizes a single digital control input (SEL) and a latch enable input (LE)
• Operates on a single +3.3V power supply with low quiescent current consumption

Video Processing Applications

• Desktop PC signal routing
• Notebook PC signal routing
• Graphics memory controller hub (GMCH) switching

Video Processing Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm that the exposed paddle must be connected to ground during assembly. Ensure the design accommodates the 56-pin TQFN footprint dimensions. Check for RoHS compliance documentation corresponding to the '+' designation. Validate board layout requirements for impedance control and bypass capacitor placement near the VDD pins.

Video Processing Selection Notes

Select this component for applications requiring the switching of high-speed differential pairs between PCIe and DisplayPort interfaces. The MAX4928A variant is intended for ATX form factor desktop systems, while the MAX4928B is optimized for BTX form factors. Consider the 56-pin TQFN package size if space constraints are critical. Ensure the system logic levels align with the specified VIH and VIL thresholds for reliable SEL and LE control.

Video Processing Part Context

This part belongs to the MAX4928 family of DisplayPort and PCIe passive switches manufactured by Analog Devices Inc./Maxim Integrated. The family includes variants tailored for different motherboard form factors. These devices address the need for flexible signal path management in modern computing architectures where multiple display and expansion interfaces share common controller resources.

Video Processing Replacement Considerations

MAX4928BETN+