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Controller is World’s Easiest-to-Implement Capacitive Touch Sensing Solution

Tue, 08/31/2010 - 12:33pm
Cypress Semiconductor Corporation has released a new CapSense® capacitive touch-sensing controller that enables designers to achieve mechanical button replacement (MBR) without having to write firmware or learn to use new software tools.

The new CapSense Express™ device leverages Cypress’s revolutionary SmartSense™ auto-tuning algorithm, which eliminates the requirement for system tuning. Cypress’s accompanying design toolbox provides detailed resources to ensure optimal interface performance, and advanced system debug features allow taking designs directly to production for significantly shorter time-to-market.

The controller delivers robust touch-sensing with ultra-low power consumption to extend battery life in a wide range of handheld products, and is ideal for consumer, communication, white goods, lighting, industrial and medical applications.

The hardware-configurable CY8CMBR2044 CapSense Express Mechanical Button Replacement controller operates from 1.7 to 5.5V and offers low overall power consumption with supply current in run mode as low as 15 uA per button and industry-best deep sleep current of 100 nA. The devices offer reliable operation in the harshest sensing conditions and Cypress’s patented CSD (CapSense Sigma Delta) sensing method ensures superior immunity to conducted and radiated noise.

With SmartSense auto-tuning, the device dynamically optimizes the baseline and detection threshold and adjusts for the optimal capacitance sensing range at power up and during runtime as environmental conditions change.

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