TS3A225E - Texas Instruments

TS3A225E AUTONOMOUS AUDIO HEADSET SWITCH

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 confi.

Features

1
• 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) APPLICATIONS
• Mobile Phones/ Tablet PCs
• Notebook Computers DESCRIPTION .