MAX4570CAI+T

Analog Switches - Special Purpose Overview

The MAX4570CAI+T is a serially controlled, dual 4x2 audio/video analog crosspoint switch manufactured by Analog Devices/Maxim Integrated. It features two independent 4-input, 2-output switch arrays with selectable clickless or regular operation modes for noiseless audio switching. The device utilizes a 3-wire SPI/QSPI/MICROWIRE-compatible interface and operates on single (+2.7V to +5.5V) or dual (±2.7V to ±5.5V) supplies. Key electrical parameters include an 80Ω typical on-resistance at ±5V, 10Ω channel-to-channel matching, and -110dB off-isolation at 20kHz. It is housed in a 28-pin SSOP package.

Analog Switches - Special Purpose Feature Summary

• Dual 4x2 crosspoint switch architecture with individual output programming
• Selectable soft-switching mode for clickless audio operation
• Integrated bias networks for AC-coupled input signals
• Four auxiliary outputs for extended microprocessor port control

Analog Switches - Special Purpose Applications

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

Analog Switches - Special Purpose Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm the specific suffix 'CAI' corresponds to the commercial temperature range (-0°C to +70°C) and SSOP package type as documented in the datasheet. Ensure the ordering information matches the exact part number required for your design specifications.

Analog Switches - Special Purpose Selection Notes

Select this component when a dual 4x2 crosspoint configuration is required with serial control capabilities. The MAX4570 variant specifically requires a 3-wire SPI/QSPI/MICROWIRE interface, distinguishing it from the I2C-compatible MAX4550. Consider the clickless mode feature if low-noise audio switching is critical for the application environment.

Analog Switches - Special Purpose Part Context

This component belongs to the MAX4550/MAX4570 family of serially controlled analog crosspoint switches. While functionally identical regarding the switch matrix, the MAX4570 differs from the MAX4550 by utilizing a 3-wire serial interface instead of a 2-wire I2C interface. Both share similar electrical characteristics and packaging options within the same product series.

Analog Switches - Special Purpose Replacement Considerations

The MAX4550CAI+ serves as a functional substitute if the system supports a 2-wire I2C interface instead of the 3-wire SPI/MICROWIRE interface required by the MAX4570. Other variants such as MAX4570EAI+ offer extended temperature ranges but maintain the same pinout and interface protocol.