SH1412

SH1412 Capacitive Touchpad Controller www.DataSheet4U.com for Notebook Applications HID & SYSTEM MANAGEMENT PRODUCTS DESCRIPTION The SH1412 capacitive touchpad controller uses advanced capacitive position and motion sensing algorithms. Just a few lowtolerance external components are needed. The touchpad follows the industry standard of using multiple lines to detect the presence of a user’s finger. Once a finger is in close proximity to the touchpad, its position is calculated along with its pressure on the touchpad surface. Sophisticated algorithms filter out any noise from the finger, or from other sources, such as cell phones. The SH1412 appears to the host system as a standard three-button mouse; no special driver is required. If the Semtech driver is used, more advanced functions such as edge motion, gestures, and wheel functionality are available. Typically consuming less than 4 mA, the SH1412 is ideal for battery-operated systems. PS/2® communication is bidirectional at 10 kbps. The SH1412 returns up to 100 mouse reports per second, and is compatible with the standard two-button mouse protocol and the standard three-button mouse protocol. It implements all commands from and to the system (as defined in the IBM® PS/2 mouse communication protocol). FEATURES Light touch and precise control Industry-standard PS/2 interface Up to 3 buttons for touchpad features Full wheel mouse support Highly resistant to EMI and RFI noise > 500 DPI resolution APPLICATIONS Not...