NCX8193GU: Audio jack detection and configuration with false detection prevention

Overview

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.

Features

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 Ω (typical) at a supply voltage of 2.8 V
ESD protection:
- HBM JEDEC JDS-001 Class 3B exceeds 8 kV
Operating ambient temperature ‑40 °C to +85 °C

Target Applications

Headphones with integrated microphone and remote control buttons

Features

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 Ω (typical) at a supply voltage of 2.8 V
ESD protection:
- HBM JEDEC JDS-001 Class 3B exceeds 8 kV
Operating ambient temperature ‑40 °C to +85 °C

Target Applications

Headphones with integrated microphone and remote control buttons

NCX8193 Block Diagram

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NCX8193 Block Diagram
sot1160-2_3d

NCX8193 Block Diagram

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