Cypress launches new TrueTouch Gen5 touch screen controller

The TMA568 controller supports a precise passive stylus and a palm touch prevention function and can suppress the noise generated by the charger and the screen

Cypress Semiconductor has launched a new controller of the TrueTouch® Gen5 series, which brings the world's best anti-noise performance to devices such as super phones, smartphones, tablets and e-books. The TMA568 controller allows users to write and draw with a passive stylus with a tip diameter of 2.0 mm, and can recognize characters as small as 7 mm. This feature is extremely important for languages ​​that require complex character recognition capabilities, such as Chinese and Japanese, in order to perform reliable handwritten text input. The new controller has also added the function of preventing palm accidental touch for the Gen5 series, which can recognize the action of the user's palm touching the screen and prevent accidental touch input.

Electronic noise generated from the screen and non-original chargers may interfere with the normal operation of the touch screen. TrueTouch Gen5 series devices have the ChargerArmor â„¢ function, which can provide an unprecedented up to 40 volts peak-to-peak voltage (Vpp) in the range of 1 to 500 kHz under 0.5 mm ultra-thin coating (Cover Lens) and 22 mm finger touch The industry's best anti-noise ability of the charger, while other controllers can not provide more than 15 Vpp anti-noise ability under the same conditions. In addition to top-notch anti-noise performance, the new TMA568 controller also includes 58 inductive I / O and 21 parallel receiving channels, which can scan the entire panel at a time, providing excellent response speed. This controller makes the distance between touch screen sensors smaller, so it can accurately track smaller fingers and styluses, and supports an 8.3-inch screen with a sensor spacing of only 5.0 mm.

John Carey, Senior Director of Cypress ’s TrueTouch product marketing, said: “We have carefully designed the new TMA568 controller to provide the features and performance required by the new generation of super phones and tablets. In addition to providing Gen5 series top charger noise immunity In addition to the waterproof function, TMA568 also brings the features of precision stylus support, prevention of palm touch and quick response of large-size touch screen. "

Gen5 uses Cypress ’s DualSense ™ patented technology to perform self-capacitance and mutual-capacitance sensing on the same device, providing the industry ’s best waterproof function and bringing seamless operation in a variety of real environments, including Rain, moisture, or sweat. Combining this powerful architecture with the industry's leading ARM M-Core processor, known for its high efficiency MIPS / mW, Gen5 increases the refresh rate to 120Hz, the average power consumption of the operating mode is only 12mW, and the power consumption in deep sleep mode Only 15 uW.

The Gen5 controller can drive the touch screen at a voltage of 10 volts and uses a narrow-band high-frequency signal to support single-scan and advanced hardware DSP filtering functions. Gen5 ’s unmatched noise immunity enables developers of next-generation mobile phones to realize ultra-thin panel integrated stacking structures, including In-Cell, On-Cell, and direct-fitting methods. Stacking on a screen that generates a lot of noise is also normal operating. Therefore, the terminal product can be made thinner and lighter, while having a flawless user experience.

Availability and photos

The new TrueTouch TMA568 controller is now in mass production for major customers. The new controller is available in 56-pin 6 mm x 6 mm QFN package and 70-ball 5.5 mm x 5.5 mm BGA package. The high-resolution photos of the controller can be viewed at the following website: TMA568photo

The leader in touch

Cypress's touch-sensing products are not only the largest lineup, but also the most popular products for customers, including solutions such as TrueTouch®, CapSense® and TrackPad. The company's IP solutions are unparalleled, including true single-layer sensor solutions, which can be used to greatly reduce the cost of touch screens, and can support self-capacitance and mutual capacitance sensing functions in the same chip, allowing the product to support a variety of Advanced features such as waterproofing, proximity sensing, stylus with a diameter of 2mm, and hovering.

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