TS3A226AE - Texas Instruments

TS3A226AE Autonomous Audio Headset Switch

The TS3A226AE is an audio headset switch that detects 3- or 4-pole 3.5mm accessories. For a 4-pole accessory with a microphone, the TS3A226AE also detects the MIC location and routes the microphone and ground signals automatically. The ground signal is routed through a pair of low-impedance ground FETs (60mΩ typical), resulting minimal impact on audio cross-.

Features

1
• Ground FET Switches (60mΩ typical)
• Autonomous Detection of Headset Types: 3-Poles or 4-Poles (with MIC on SLEEVE or RING2)
• Microphone Line Switches
• Supports FM Signal Transmission Through the Ground FETs
• Reduction of Click/Pop Noise
• VDD Range: 2.6 V
  – 4.7 V
• THD (Mic): 0.002% Typical
• Low Current Consumption: 6.5-µA Typical
• ±8kV Contract Discharge (IEC 61000-4-2) ESD Performance on SLEEVE and RING2 Pins APPLICATIONS
• Mobile Phones / Tablet PCs
• Notebook/Ultrabook Computers DESCRIPTION The TS3A226AE is an audio headset switch that detects 3- or 4-pole 3.5mm accessories. For.