描述 Description

AW93310QNR is a capacitive sensing which supports up to 10-channel capacitive detection and mainly used for wear detection, touch key, linear slider, wheel slider, etc.
Advanced self/mutual capacitance technology is adopted in AW93310QNR. 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.
AW93310QNR 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, AW93310QNR is able to track gradual environmental variations (such as temperature, humidity, etc.).
AW93310QNR 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.

特性 Features

1 10-channel capacitive sensor
2 Self/Mutual capacitive sensing techniques
3 Capacitance resolution down to 1aF
4 Capacitance offset compensation up to 220pF
5 Auto-Offset-Tuning (AOT)
6 Adaptive temperature compensation
7 Multi-threshold judgment
8 Effective waterproof
9 Independent configurations per channel
10 Built-in gesture/event recognition:
1) Click/Wear detection
2) 1D linear slide detection
3) 2D linear slide detection
11 1.2V/1.8V 400kHz I2C interface
1) Default address: 0x12
2) Address configurable via pin CS2
12 Embedded 8KB DATARAM and 12KB CODERAM
13 Ultra-low power consumption(NOTE1)
1) Active mode: 23.5μA
2) Doze mode: 10.7μA
3) Sleep mode: 8.9μA
4) DeepSleep mode: 6.1μA
14 1.65V~3.6V power supply
15 QFN 2×2-14L package