MAX4574CEI+

Analog Switches - Special Purpose Overview

The MAX4574CEI+ is a serially controlled audio/video switch IC from the MAX4571–MAX4574 family, manufactured by Analog Devices (Maxim Integrated). It features two SPST and six SPDT switches within a 28-pin QSOP package. The device operates on a single supply voltage ranging from +2.7V to +5.25V. Key electrical parameters include a maximum on-resistance of 35Ω at +5V and 90Ω at +3V, with an on-resistance flatness of 6Ω. It provides -90dB audio off-isolation at 20kHz and -50dB video off-isolation at 10MHz. The component utilizes a 3-wire SPI/QSPI/MICROWIRE-compatible interface for control.

Analog Switches - Special Purpose Feature Summary

• Features selectable soft switching mode for clickless audio operation
• Includes two SPST and six SPDT analog switches
• Utilizes a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols

Analog Switches - Special Purpose Applications

• Set-Top Boxes
• Audio Systems
• PC Multimedia Boards
• Video Conferencing Systems

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix 'CEI+' against the manufacturer's current ordering information to confirm the package type and temperature range. Ensure the design supports the required 3-wire serial protocol timing. Confirm that the commercial temperature range meets the application requirements before finalizing procurement.

Analog Switches - Special Purpose Selection Notes

Select this part when a combination of SPST and SPDT switching is required in a single package. The MAX4574 differs from the MAX4571 and MAX4573 by using a 3-wire interface instead of I2C. Verify that the system controller can generate the necessary CS, SCLK, and DIN signals for proper communication.

Analog Switches - Special Purpose Part Context

This component belongs to the MAX4571–MAX4574 series of serially controlled switches. While the MAX4571 and MAX4573 contain eleven SPST switches and use an I2C interface, the MAX4574 specifically integrates two SPST and six SPDT switches. All variants share similar electrical characteristics and packaging options.

Analog Switches - Special Purpose Replacement Considerations

The MAX4574EAI+ serves as an extended temperature version of this component. Other members of the family, such as the MAX4571 or MAX4572, offer different switch configurations but may require interface adaptation.