MAX4548EAX

Analog Switches - Special Purpose Overview

The MAX4548EAX+ is a serially controlled, triple 3x2 audio/video crosspoint switch manufactured by Analog Devices. It integrates three independent switch matrices, each providing three inputs and two outputs. The device operates on a single supply voltage ranging from +2.7V to +5.5V and features a maximum on-resistance of 35Ω with 7Ω matching between channels. It utilizes a 2-wire I²C-compatible serial interface for configuration. Key performance metrics include -85dB off-isolation at 20kHz, -85dB crosstalk at 20kHz, and 0.07% total harmonic distortion. The component is housed in a 36-pin SSOP package and supports an extended operating temperature range from -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Configurable soft-switching mode enables clickless audio operation
• Integrated internal resistive voltage dividers provide DC bias for AC-coupled inputs
• Shunt input architecture improves off-isolation performance
• Externally accessible bypass points reduce channel-to-channel crosstalk

Analog Switches - Special Purpose Applications

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

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix against official documentation to confirm pin compatibility and electrical specifications. Confirm RoHS compliance status through manufacturer datasheets or certificates of conformity prior to integration. Ensure the design accommodates the required serial interface timing constraints for reliable communication.

Analog Switches - Special Purpose Selection Notes

Select this component when a triple 3x2 switching matrix is required within a compact footprint. Verify that the system logic levels align with the specified digital input characteristics. Consider the thermal dissipation capabilities of the SSOP package relative to the expected power consumption during active switching cycles.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX4548/MAX4549 family of analog switches. While functionally similar, the MAX4549 variant utilizes a 3-wire SPI/QSPI/MICROWIRE interface instead of the I²C interface found in the MAX4548. Both share identical electrical parameters and pinouts but differ in control protocol requirements.

Analog Switches - Special Purpose Replacement Considerations

Direct substitutes within the same family include the MAX4549EAX+, which offers identical switching performance but requires a different serial interface configuration.