Proximity Sensing of up to 30CM Range with >15dB SNR and Robust Capacitive Touch Reference Design
Description
Capacitive sensing based touch button implementation is commonly used: for the user interfaces in home appliances. Solutions based on low measurement resolution: suffer from achieving reliable operation and faster user response. The TI design TIDA-00474 hardware platform demonstrates the mitigation of these challenges using EMI-resistant: high-resolution (up to 28 bits): high-speed capacitance-to-digital converters. The board is designed and tested in cooker hood environment. Implementation details and test results are provided for capacitive button sensing and long range proximity sensing (up to 30cm).
Features
- 2 channels of high resolution (28bits) proximity sensing: providing tested hardware platform for the implementation of gesture recognition6 capacitive touch keys implementation for robust touch detection against moisture and other disturbancesEMI resistance architecture on each capacitive sensing channel to protect the detection against common noise sourcesProximity sensing implementation and test results with copper on PCB and ITO (indium tin oxide) based implementationsLow power consumption during standby. Less than 1mA current consumption on DC power supply during standbyHighly integrated LED driver circuit on board with digital dimming: over current protection: over temperature protection and adjustable under voltage-lock-out functionsProvision for temperature sensing and humidity sensingFully tested for cooker hood equipment
Applications
- Standard notebook PC
- In vitro diagnostics
- Smartphone
- Washer & dryer
- Dialysis machine
- Refrigerator & freezer
- Automotive head unit
- Locator/tracker
- Air purifier & humidifier
- Tablet (multimedia)
- Dishwasher
- Cordless power tool
- Oven
- Residential & living fan
- Coffee machine
- Mixer
- blender & food processor
- Electronic hospital bed & bed control
- Vacuum robot
- Cooker hood
- Cordless handheld garden tool
- Mains powered tools
- Aftermarket head unit
- Lawn mower
- Robotic lawn mower
- Air conditioner indoor unit
- Humanoid
- Mother & neonatal care monitor
- Industrial robot sensing module
- Mobile robot sensing module
- Motorized electronic wheel chair
Product Categories
- Sensors
| Download |
|---|
| Download the bill of materials for TIDA-00474 | Download |
Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for TIDA-00474| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00474 Gerber | 02 Oct 2015 | ZIP | 161 | |
| TIDA-00474 Altium | 02 Oct 2015 | ZIP | 1075 | |
| TIDA-00474 PCB | 02 Oct 2015 | 738 | ||
| TIDA-00474 Assembly Drawing | 02 Oct 2015 | 285 | ||
| TIDA-00474 BOM | 02 Oct 2015 | 286 | ||
| TIDA-00474 Schematic and Block Diagram | 02 Oct 2015 | 792 |