TS3A225E Datasheet PDF - TI

●The TS3A225E is an audio headset switch device. The device detects the presence of an analog microphone and switches a system analog microphone pin between different connectors in an audio stereo jack. The microphone connection in a stereo connector can be swapped with the ground connection depending on manufacturer. When the TS3A225E detects a certain configuration, the device automatically connects the microphone line to the appropriate pin. The device also reports the presence of an analog microphone on an audio stereo jack.

●In some systems, it is desirable to connect the stereo jack pin to ground. The TS3A225E provides two internal low resistance (<100mΩ) FET switches for ground shorting.

● VDD Range = 2.7 V to 4.5 V

● Break Before Make Stereo Jack Switches

● Ron for Ground FET Switches

● WCSP Package: 70 mΩ

● QFN Package: 100 mΩ

● Autonomous Detection of GND and MIC Connections

● Detection Triggered by I2C or External Trigger Pin

● HDA Compatible MIC Present Indicator

● 1.8V Compatible I2C Switch Control

● ESD Performance Tested Per JESD 22:

● 2000-V Human-Body Model (A114-B, Class II)

● 500-V Charged-Device Model (C101)

● ESD Performance (SLEEVE, RING2, TIP)

● ±8-kV Contact Discharge (IEC 61000-4-2)