MAX14998ETO+T

Analog Switches - Special Purpose Overview

The MAX14998ETO+T is a high-speed passive switch designed for DisplayPort applications. It integrates six double-pole/double-throw (DPDT) switches to route four-lane high-frequency signals alongside separate AUX and HPD channels. The device operates from a single +3.0V to +3.6V power supply, with a typical voltage of +3.3V. It features an 8.5GHz typical bandwidth and supports signal data rates up to 17 Gbps. The IC handles DisplayPort v1.1 and v1.2 signals, offering excellent return loss of -13dB at 2.7GHz. It is housed in a 42-pin TQFN package with an exposed pad and functions within an extended temperature range of -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Integrates six DPDT switches for routing four-lane high-frequency signals plus independent AUX and HPD channels
• Supports DisplayPort v1.1 and v1.2 signals with ultra-high-speed performance and minimal input capacitance
• Features flow-through layout architecture to simplify board design and routing flexibility

Analog Switches - Special Purpose Applications

• Notebook PCs
• Desktop PCs

Analog Switches - Special Purpose Procurement Notes

Verify the component authenticity by checking the manufacturer markings against official documentation. Confirm the package type matches the specified 42-pin TQFN configuration. Ensure the operating environment remains within the defined temperature limits. Cross-reference the datasheet revision to confirm feature compatibility. Validate that the ordering suffix corresponds to the correct tape and reel packaging format.

Analog Switches - Special Purpose Selection Notes

Select this component when designing systems requiring four-lane DisplayPort switching capabilities. The MAX14998 is appropriate for scenarios demanding low insertion loss and high off-isolation. Consider the 42-pin package dimensions during the mechanical layout phase. Evaluate the power supply requirements to ensure stable operation within the specified voltage range. Compare the pin count against simpler two-lane alternatives if lane reduction is acceptable.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX4998/MAX14998 family of high-speed passive switches manufactured by Analog Devices / Maxim Integrated. While the MAX4998 provides two-lane switching in a smaller 28-pin package, the MAX14998 expands capacity to four lanes using a 42-pin footprint. Both devices share identical control logic and electrical characteristics tailored for DisplayPort signal integrity.

Analog Switches - Special Purpose Replacement Considerations

The MAX4998ETO+T serves as a functional substitute for designs requiring only two DisplayPort lanes instead of four. Verify that the reduced pin count and package size are compatible with the existing PCB layout constraints before implementing any replacement strategy.