MAX4928BETN+

Video Processing Overview

The MAX4928BETN+ is a high-speed passive switch IC designed to route PCI Express and DisplayPort signals between two destinations in desktop or laptop PCs. It features six bidirectional double-pole/double-throw (DPDT) analog switches controlled by a single SEL input and a latch enable (LE) input. The device operates from a single +3.0V to +3.6V power supply with a maximum supply current of 850µA. It supports PCIe Gen I, Gen II, and DisplayPort data rates exceeding 5Gbps. The component is housed in a 56-pin TQFN package measuring 5mm x 11mm and operates 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 within a single device
• Supports high-speed data transmission for PCIe Gen I, Gen II, and DisplayPort protocols
• Utilizes a single digital control input (SEL) and a latch input (LE) for signal path selection and state retention
• Operates on a single +3.3V typical power supply with low quiescent current consumption

Video Processing Applications

• Desktop PC systems utilizing the ATX form factor
• Notebook PC systems utilizing the BTX form factor
• Routing signals between a graphics memory controller hub (GMCH) and PCIe connectors
• Routing signals between a GMCH and DisplayPort connectors

Video Processing Procurement Notes

Verify that the specific part number suffix corresponds to the intended application variant, as the MAX4928A and MAX4928B are distinguished by their target system form factors. Confirm RoHS compliance status based on the '+' designation in the ordering information. Ensure the procurement documentation matches the 56-pin TQFN package specifications and the required extended industrial temperature range.

Video Processing Selection Notes

Select this component when designing systems requiring the switching of high-speed differential PCIe or DisplayPort signals. The MAX4928B is specifically intended for BTX form factor applications, whereas the MAX4928A targets ATX form factors. Consider the device's ability to handle AC-coupled 8b/10b encoded signals up to 5.0Gbps and its requirement for rail-to-rail drive on control inputs to minimize power consumption.

Video Processing Part Context

The MAX4928BETN+ belongs to the MAX4928A/MAX4928B family of high-speed passive switches manufactured by Maxim Integrated, now part of Analog Devices Inc. These devices are engineered to manage signal routing in personal computer architectures. The family shares identical electrical characteristics and pinout structures, differing primarily in their designated use cases for specific motherboard form factors.

Video Processing Replacement Considerations

The MAX4928AETN+ serves as the functional equivalent for ATX form factor designs. Verify compatibility regarding the specific system layout requirements before substituting between the A and B variants.