TS3A225ERTER

Analog Switches - Special Purpose Overview

The TS3A225ERTER is an autonomous audio headset switch integrated circuit manufactured by Texas Instruments. It detects analog microphone presence and switches system analog microphone pins between different contacts in a stereo audio jack. The device supports I2C or external trigger pin detection, features low on-resistance of 70 mΩ in WCSP packaging, operates within a voltage range of 2.7 V to 4.5 V, and functions across a temperature range of -40°C to 85°C with typical supply current of 8 µA.

Analog Switches - Special Purpose Feature Summary

• Autonomous detection of analog microphone insertion and removal states
• Automatic routing of microphone and ground connections for four-pole headsets
• I2C interface for reporting headset configuration and status information

Analog Switches - Special Purpose Applications

• Smartphones
• Tablets
• Laptops
• Audio docks
• Home audio applications

Analog Switches - Special Purpose Procurement Notes

Verify the specific package type and tape-and-reel specifications against the official datasheet before ordering. Confirm that the I2C address and control logic align with the target system design. Ensure environmental ratings meet the operational requirements for the intended deployment environment.

Analog Switches - Special Purpose Selection Notes

Select this component when autonomous switching of audio paths without complex microcontroller intervention is required. It is suitable for designs needing low power consumption and high ESD protection levels. Consider the available packaging options if board space is constrained.

Analog Switches - Special Purpose Part Context

This part belongs to the TS3A225 family of audio switches designed to replace discrete components in mobile devices. It simplifies the detection and configuration of audio headsets by handling both three-pole and four-pole connector types automatically.

Analog Switches - Special Purpose Replacement Considerations

Check for direct pin-compatible alternatives within the same TI series. Verify that any substitute maintains the same autonomous detection capabilities and I2C compatibility.