NCX8193GUX

Audio Special Purpose Overview

The NCX8193 is an advanced audio jack accessory detector and controller designed for 3-pole and 4-pole connectors. It detects plug insertion using a fault detection technique to prevent false detections. The device features an internal microphone bias line switch controllable by a codec or application processor. Operating with a supply voltage of 2.4V to 5.25V, it provides fail-safe headset detection, low-power standby mode, and click-free switching. The component includes ESD protection exceeding 8 kV (HBM Class 3B) and operates within an ambient temperature range of -40°C to +85°C.

Audio Special Purpose Feature Summary

• Supports 3-pole and 4-pole connector detection with false detection prevention
• Internal microphone bias path switch controlled via EN pin
• Send/End button detection with trigger level of 780 mV
• Low ON resistance of 0.9 Ω typical at 2.8 V supply

Audio Special Purpose Applications

• Headphones with integrated microphone
• Headsets with remote control buttons

Audio Special Purpose Procurement Notes

Verify the package type XQFN10 (SOT1160-2) matches the design footprint. Confirm the operating temperature range of -40°C to +85°C meets system requirements. Ensure power supply rails are within the 2.4V to 5.25V limit for VCC and 1.6V to VCC for VCC(IO). Check that ESD protection levels are sufficient for the target environment.

Audio Special Purpose Selection Notes

Select this component for applications requiring analog audio jack detection and configuration. It is suitable for systems needing low THD and noise in the microphone pass-through channel. Consider the 10-terminal XQFN package size of 1.8 x 1.4 mm for space-constrained designs. Verify compatibility with 3-pole and 4-pole headset standards.

Audio Special Purpose Part Context

The NCX8193 is part of NXP's Audio Special Purpose category. It functions as a dedicated detection monitor for audio interfaces. The device integrates logic control and analog switching capabilities to manage headset connections without requiring complex external circuitry for basic plug detection.

Audio Special Purpose Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.

Audio Special Purpose FAQ

How does the NCX8193 detect plug insertion?

It uses a fault detection technique where J_DET is pulled up to VCC. When a plug is inserted, J_DET is pulled below 400 mV, triggering the DET output to go LOW.

What is the function of the EN pin?

The EN pin controls the microphone bias path switch. Setting EN HIGH closes the switch, enabling the button press detection circuit on J_MIC.

What is the typical ON resistance of the microphone switch?

The typical ON resistance is 0.9 Ω at a supply voltage of 2.8 V, with a maximum of 1.5 Ω under specified conditions.