MAX4585EUB+

Analog Switches - Special Purpose Overview

The MAX4585EUB+ is a serially controlled audio/video switch IC featuring one normally open single-pole/single-throw (SPST) and one single-pole/double-throw (SPDT) analog switch. It operates on a single +2.7V to +5.5V supply with a maximum on-resistance of 65Ω at +5V. The device utilizes a 3-wire SPI/QSPI/MICROWIRE-compatible interface for control. Key performance metrics include -83dB off-isolation and -84dB crosstalk at 20kHz, alongside -48dB off-isolation and -60dB crosstalk at 10MHz. It is housed in a 10-pin µMAX package and specified for an extended industrial temperature range of -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Integrates one SPST and one SPDT analog switch within a compact 10-pin µMAX package.
• Supports 3-wire SPI, QSPI, and MICROWIRE compatible serial interfaces for independent channel control.
• Optimized for multimedia applications with high off-isolation and low crosstalk across audio and video frequencies.

Analog Switches - Special Purpose Applications

• Cellular Phones and Accessories
• PC Multimedia Audio/Video Routing
• Set-Top Boxes
• Video Conferencing Systems

Analog Switches - Special Purpose Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the official datasheet specifications. Confirm that the ordering suffix matches the required temperature grade and packaging format. Ensure the serial interface protocol aligns with the system controller's capabilities before finalizing procurement.

Analog Switches - Special Purpose Selection Notes

Select this model when a 3-wire serial interface is required rather than the I2C-compatible MAX4584. Evaluate the 65Ω on-resistance limit against the signal integrity requirements of the specific application. Consider the 10-pin µMAX footprint constraints during the PCB layout phase to ensure proper thermal dissipation and mechanical stability.

Analog Switches - Special Purpose Part Context

This component belongs to the MAX4584/MAX4585 family of serially controlled switches designed for multimedia routing. While functionally similar to the MAX4584, the MAX4585 variant specifically supports SPI, QSPI, and MICROWIRE protocols. Both devices share identical electrical characteristics and package dimensions, differing only in their digital control interface architecture.

Analog Switches - Special Purpose Replacement Considerations

The MAX4584EUB+ serves as a direct functional substitute if the system design accommodates a 2-wire I2C-compatible interface instead of the 3-wire SPI configuration. Pin compatibility remains identical between the two variants.