MAX14531EEWC+T

Analog Switches - Special Purpose Overview

The MAX14531EEWC+T is a high ESD-protected DP3T switch designed to multiplex Hi-Speed (480 Mbps) USB signals, low/full-speed USB signals, and analog signals such as AC-coupled audio or video. It operates from a +2.7V to +5.5V supply with a typical quiescent current of 10µA. The device features an internal negative supply allowing AC-coupled audio signals down to -2.0V. Key electrical parameters include a typical on-resistance of 2Ω, a -3dB bandwidth of 800MHz, and off-isolation of -65dB at 100kHz. It includes VBUS detection via the CB0 input for automatic switching.

Analog Switches - Special Purpose Feature Summary

• Integrates an internal charge pump to generate a negative supply rail, enabling the transmission of AC-coupled analog signals that swing below ground potential without distortion.
• Features VBUS detection capability through the CB0 control input, which automatically connects the common terminal to the default USB signal path upon detecting a valid VBUS voltage.
• Provides extended electrostatic discharge protection rated up to ±15kV on the COM1 and COM2 terminals using the Human Body Model.

Analog Switches - Special Purpose Applications

• Cell Phones
• MP3 Players
• PDAs
• Notebook Computers

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity by checking the top mark against the ordering information table. Confirm the package type matches the specified 12-bump WLP format. Ensure the specific suffix corresponds to the required shunt resistor configuration and pull-down resistor presence defined in the datasheet selector guide.

Analog Switches - Special Purpose Selection Notes

Select this part when multiplexing USB 2.0 Hi-Speed data alongside AC-coupled audio or video signals requiring negative voltage handling. Compare against MAX14532E–MAX14534E if internal shunt resistors for click-and-pop reduction are necessary. Verify that the 12-bump WLP package dimensions fit the available PCB real estate constraints.

Analog Switches - Special Purpose Part Context

This component belongs to the MAX14531E–MAX14534E family of USB 2.0 switches manufactured by Analog Devices Inc./Maxim Integrated. These devices share a common functional architecture but differ in integrated passive components like shunt resistors and pull-down resistors. The EEWC suffix denotes the specific 12-bump Wafer-Level Package variant.

Analog Switches - Special Purpose Replacement Considerations

MAX14532EEWC+T

Analog Switches - Special Purpose FAQ

How does the device handle analog signals below ground?

The MAX14531EEWC+T contains an internal charge pump that generates a negative supply. This allows AC-coupled audio or video signals applied to the UAX_, UAY_, UAZ_, or COM_ pins to swing down to -2.0V without distortion.

What is the function of the CB0 input?

The CB0 input serves as a control logic input and a VBUS detection pin. When the voltage on CB0 exceeds the VBUS detection threshold, it automatically switches the COM_ terminal to connect with the UAX_ channel.

Does this specific model include internal shunt resistors?

No, the MAX14531E does not feature internal shunt resistors. Models such as the MAX14532E and MAX14534E include these resistors to reduce clicks and pops on audio channels.