4.2 SHIELD (Driven Shield)

The MTCH1030 touch controller features an active shield (Driven Shield +) signal to enhance touch sensitivity and robustness.

Driven Shield Plus benefits:

• Reduced sensor load
• Water-tolerant touch
• Increased sensitivity
• Shields against electrical noise. The sensors not currently measured are driven as a shield, helping to avoid false detection due to the water bridge between the multiple sensors.

Refer to Microchip Application Note (AN2934) - Capacitive Touch Sensor Design for further details and layout considerations for Driven Shield Plus usage.