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NCX8193
Audio jack detection and configuration with false detection prevention
Rev. 2 — 21 November 2014
Product data sheet
1. General description
The NCX8193 is an advanced audio jack accessory detector and controller. It supports 3-pole and 4-pole connectors and detects the insertion of plugs into jacks using a fault detection technique. An internal microphone bias line switch allows a codec or application processor to control the audio jack configuration. The device supports a broad variety of after-market headphones.
2. Features and benefits
Fail-safe headset and headphone detection Low-power standby mode Click free switching Low THD and noise microphone pass through channel Send/End button detection Low ON resistance: 0.9 (typical) at a supply voltage of 2.