| Channel |
5 |
| LED Output |
0 |
| Gesture Detection |
Click<br>Slide<br>IED |
| ISD (μA) |
/ |
| Istandby (μA) |
6.1 |
| Capacitance Resolution(fF) |
0.001 |
| Power Supply (Min) (V) |
1.65 |
| Power Supply (Max) (V) |
3.6 |
| Temperature |
-40℃~85℃ |
| Flash |
NO |
| Package (mm) |
DFN 2.1X1.8-10L |
5-channel capacitive sensor
Self/Mutual capacitive sensing techniques
Capacitance resolution down to 1aF
Capacitance offset compensation up to 220pF
Auto-Offset-Tuning (AOT)
Adaptive temperature compensation
Multi-threshold judgment
Effective waterproof
Independent configurations per channel
Built-in gesture/event recognition:
Click/Wear detection
1D linear slide detection
Wheel slide detection
1.2V/1.8V 400kHz I2C interface
Default address: 0x12
Address configurable via pin CS2
Embedded 8KB DATARAM and 12KB CODERAM
Ultra-low power consumption
Active mode: 21.9μA
Doze mode: 9.7μA
Sleep mode: 7.9μA
DeepSleep mode: 6.1μA
1.65V~3.6V power supply
DFN 2.1X1.8-10L package
AW93305DNR is a capacitive sensing which supports up to 5-channel capacitive detection and mainly used for wear detection, touch key, linear slider, wheel slider, etc.
Advanced self/mutual capacitance technology is adopted in AW93305DNR. With a high-resolution ADC and advanced digital signal processing (DSP) algorithm, the minimal capacitance that can be detected is as low as 1aF in typical application.
AW93305DNR contains the I2C serial communication bus. Through I2C, Host can configure the chip to work. Upon event detection, the interrupt pin outputs asserts, enabling Host to receive the event information such as distance.
A built-in ultra-low power MCU realizes AFE sampling control, signal filtering, RF noise suppression, adaptive temperature compensation, baseline tracking, touch/wearing status determination, etc.
With the advanced DSP algorithm, AW93305DNR is able to track gradual environmental variations (such as temperature, humidity, etc.).
AW93305DNR can recognize various gestures, such as single/double/triple click, short/long press, linear slide and wheel slide with the high-resolution capacitive sensing. The chip integrates mutual capacitive technology and dedicated algorithm, which greatly improve the waterproof performance for touch key.
