TSC2017IYZGR datasheet by Texas Instruments

TSC2017IYZGR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the TSC2017IYZGR to minimize noise and ensure optimal performance?
  A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a low-ESR capacitor for decoupling and place it close to the device.
• How do I ensure the TSC2017IYZGR is properly calibrated for accurate touch sensing?
  Calibration involves adjusting the sensitivity and threshold settings. Perform a self-capacitance measurement to determine the baseline capacitance, then adjust the sensitivity and threshold settings based on the application's requirements. Refer to the TI TouchSense Design Center for calibration guidelines.
• What is the maximum operating temperature range for the TSC2017IYZGR?
  The TSC2017IYZGR operates from -40°C to 85°C. However, the device's performance and accuracy may degrade at extreme temperatures. Ensure proper thermal management and consider temperature compensation techniques for optimal performance.
• How do I handle electromagnetic interference (EMI) and radio-frequency interference (RFI) when using the TSC2017IYZGR?
  Use a shielded cable for the touch sensor interface, and ensure the PCB layout is designed to minimize EMI and RFI. Add EMI filters or ferrite beads to the power supply lines, and consider using a metal shield or enclosure to reduce radiation.
• What is the recommended power-up sequence for the TSC2017IYZGR to prevent damage or malfunction?
  Power up the device in the following sequence: VDD, VDDIO, and then the clock signal. Ensure the power supply is stable and within the recommended voltage range before applying the clock signal.