5月7Sunday evening, Apple's spring new product launch special event introduced a new upgradeApple Pencil Pro, continuous depth layout pressure touch human-computer interaction field。According to foreign media, the upcoming release of AppleiPhone16It will also do away with physical volume buttons and power buttons in favor of innovative "pressure.+Capacitive "touch button technology。In science and technology day new moon异Today,Traditional physical keys are gradually being replaced by touch technology such as resistors and capacitors。The technique broke the traditionThe appearance design of the unified physical buttons brings users a more beautiful, convenient and high-tech human-computer interaction experience。Products using capacitive touch detection technology do not need to open holes on the surface of the product, which can provide a convenient and long service life for the product, and give the product a dual charm of science and technology and art。However, it may be easy to mistouch in some application scenarios。The full pressure touch technology can accurately capture the user's pressure and has a stronger anti-interference ability, but when sliding operation, due to the friction between the finger and the panel, the user experience may be affected。因此，Combining capacitance and pressure detection techniques for sliding operation,It's the perfect combination of technology。Achieve the perfect integration of capacitance and pressure
Core Sea Technology"Pressure and volume in oneSoC”系列芯片创新The fusion resistance and capacitance detection module is realized“Open touch, slide+Pressure detection”High reliability of human-computer interaction,在Steering wheel buttons, large-screen interaction, and smart home appliances in the car's smart cockpit和Smart phone sliding controls and buttonsIt has a wide range of application prospects in operation。
The product integrates a 32-bit MCU with high precision measurement AFE and capacitance detection module CS (Cap sensor), built-in analog multichannel selector (MUX),Programmable gain amplifier(PGA), 16-bit SAR ADC, Temperature sensor (TS) and other components。At the same time, in order to meet the needs of different applications, the series of chips also have 64K bytes of FLASH, 16K bytes of SRAM, providing a maximum operating frequency of 24MHz。In terms of communication interface, it is equipped with an I2C module, a UART module, three timer modules and two watchdog modules。
Core Sea Technology "pressure and volume two in one SoC"Series chips have multiple advantages in the field of human-computer interaction:Advantage - High precision measurement and perception: Built-in 16-bit SAR ADC that can detect tiny voltages of 1uV and 1.Capacitance changes of 5fF, thus identifying 1g pressure and 0.1㎜ sliding distance;Advantage 2 Multi-channel serialization option：Rich multi-channel number options are providedProduct series selection, can flexibly meet the needs of various application scenarios, to provide users with personalized interactive experience。
Pressure sensing chip series product listAdvantage 3: Ultra-low power consumption：In the "slide + pressure detection" process, the average power consumption is only 8uA, thus ensuring that the device has a long battery life。
