China, June 21, 2011 - STMicroelectronics (STMicroelectronics), a supplier of MEMS (Micro-Electro-Mechanical Systems) products across multiple electronics applications, leading global semiconductor suppliers, and the world's largest consumer electronics and portable devices. New York Stock Exchange code: STM) released a new generation of FingerTip touchscreen technology that enables multi-point control of 10-inch capacitive touchscreens with a single chip solution.
STMicroelectronics' MEMS sensor and FingerTip technology have similar structures, namely, the sensing unit is connected to the high-performance capacitive touch screen sensing circuit. STMicroelectronics used its unique analog and mixed-signal interface technology to develop an innovative analog front-end chip that can detect attofarad (10-18 F) capacitance changes and maximize the system's anti-noise performance.
Touch screen applications are susceptible to interference from a variety of noise sources, including displays, systems, finger touches, or chargers. In particular, low-cost and low-quality chargers can generate up to tens of volts of noise and may even affect normal touch operations. When this happens, the charger generates a 100V (peak-to-peak) voltage and strong periodic noise of 1kHz to 1MHz. This strong noise will enter the analog front end of the touchscreen controller and cause the user to touch. Operation error.
The new FingerTip capacitive sensing technology and its built-in powerful 32-bit digital signal processing (DSP) engine eliminates noise generated during charging, improving noise immunity without sacrificing accuracy, frame rate, and power consumption. FingerTip's design also eliminates noise from the display and is compatible with both in-cell and on-cell touchscreen display technologies.
Benedetto Vigna, general manager of MEMS, sensors and high-performance analog device products of STMicroelectronics, said: “The noise generated during charging is a thorny issue that will reduce the user experience for touch screens. We have a leading position in the field of analog capacitive interface IP. Capable of achieving higher noise rejection before the digital filtering stage, the new FingerTip technology enables high-speed portable applications with faster response times, lower power consumption, and higher noise suppression performance."
STMicroelectronics and major customers have begun to evaluate new product lines based on this new technology. FingerTip's technological advantages include stylus function, extremely short response time, ultra-low power consumption, excellent linearity and accuracy in noisy environments and Micro package for smart phones and 10-inch tablets.
STMicroelectronics' MEMS sensor and FingerTip technology have similar structures, namely, the sensing unit is connected to the high-performance capacitive touch screen sensing circuit. STMicroelectronics used its unique analog and mixed-signal interface technology to develop an innovative analog front-end chip that can detect attofarad (10-18 F) capacitance changes and maximize the system's anti-noise performance.
Touch screen applications are susceptible to interference from a variety of noise sources, including displays, systems, finger touches, or chargers. In particular, low-cost and low-quality chargers can generate up to tens of volts of noise and may even affect normal touch operations. When this happens, the charger generates a 100V (peak-to-peak) voltage and strong periodic noise of 1kHz to 1MHz. This strong noise will enter the analog front end of the touchscreen controller and cause the user to touch. Operation error.
The new FingerTip capacitive sensing technology and its built-in powerful 32-bit digital signal processing (DSP) engine eliminates noise generated during charging, improving noise immunity without sacrificing accuracy, frame rate, and power consumption. FingerTip's design also eliminates noise from the display and is compatible with both in-cell and on-cell touchscreen display technologies.
Benedetto Vigna, general manager of MEMS, sensors and high-performance analog device products of STMicroelectronics, said: “The noise generated during charging is a thorny issue that will reduce the user experience for touch screens. We have a leading position in the field of analog capacitive interface IP. Capable of achieving higher noise rejection before the digital filtering stage, the new FingerTip technology enables high-speed portable applications with faster response times, lower power consumption, and higher noise suppression performance."
STMicroelectronics and major customers have begun to evaluate new product lines based on this new technology. FingerTip's technological advantages include stylus function, extremely short response time, ultra-low power consumption, excellent linearity and accuracy in noisy environments and Micro package for smart phones and 10-inch tablets.
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