AW93103CSR数据手册Awinic中文资料规格书

描述 Description

AW93103CSR is 3-channel low-power capacitive controller mainly used for in-ear detection and touch key detection in TWS headset. Each channel can be independently configured as sensor input, shield output.Advanced self-capacitance technology is adopted, which supports parasitic capacitance compensation for each channel up to 150pF. The device has a high resolution ADC, the minimal capacitance that can be detected is as low as 1fF.A high performance 32bit MCU is integrated by executing the firmware-program in the ROM, it implements all AFE sampling controlling and complicated data processing algorithms including signal filtering, RF noise suppression, baseline calculation, touch status decision, in-ear detection , etc.With the proprietary sensing algorithm of AWINIC, the device is able to accurately identify the operations such as putting on and taking off the TWS headset, single tap, double tap, slide and so on.

特性 Features

• 3-channel capacitive sensing
Self-capacitive sensing technology
Capacitance resolution down to 1fF
Maximum offset capacitance up to 150pF
Auto-Offset-Tuning (AOT)
Each Channel configurable independently
• 400kHz I2C interface
Default address: 0x12
Address configurable via pin CS2
• Externa l interrupt pin INTN, open-drain output
Support multi-level distance interrupt
• In-ear detection channels: up to 1 pairs
• Touch key channels: 1~3
• Low power consumption
Active mode: 32μA
Doze mode: 8.7μA
Sleep mode: 7.5μA
Deep Sleep mode: 3.3μA
• 1.7V~3.6V power supply
• Operation temperature range: -40°C~85°C
• WLCSP 1.75mm×0.96mm×0.57mm-8B package