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Single-chip TrueTouch controller for tablets, ultrabooks and laptops

Cypress Semiconductor has introduced a Gen4, single-chip TrueTouch controller for tablets, laptops and ultrabooks. The CY8CTMA1036 controller has 65 sense-I/O channels with support for up to 1036 nodes on the screen, enabling it to deliver flawless touchscreen performance for screens up to 12inch, says the company. It supports mobile operating systems including Windows 8 and Android. The controller uses a 32bit ARM Cortex core. It delivers built-in 10V Tx to drive the touch panel at 10V. The controller’s patent-pending Display Armor offers unprecedented immunity to noise from every type of display, even noisy displays such as AC common voltage LCDs. According to the company, Display Armor allows the controller to operate seamlessly with direct lamination, on-cell and in-cell stackups, regardless of the display chemistry. The controller platform features good noise performance, active power consumption of 2mW, and a deep sleep mode that draws 1.8µW with wake-up via address match on the computer port. The controller also ensure a fast refresh rate of 400Hz, and has the ability to scan a capacitive touch panel at 1000Hz, claims the company. The controller enables good touch performance, while providing accuracy and linearity of 0.2mm, says the company. The controller family also meets IP67 standards and has 1mm stylus support for Asian character sets and accurate handwriting capture, and hover sensing to provide mouseover-like features and true fingernail or thick-glove support in mobile devices.