Plano, Tex. Texas Advanced Optoelectronic Solutions, Inc. (TAOS) has claimed the industry's smallest RGB digital color sensors, housed in a six-lead chipscale package that also includes an internal infrared-blocking filter. This eliminates the error resulting from the infrared spectral component of the light source while measuring light intensity and color as the human eye sees it without the need for an external filter.
The TCS3404 and TCS3414 color light sensors with integrated red, green and blue (RGB) filters can derive the color chromaticity and illuminance (intensity) of ambient light with 16-bits of resolution for managing light-emitting diode (LED) and cold cathode fluorescent lamp (CCFL) display backlighting. Applications include televisions, industrial and commercial signage, architectural lighting, and embedded display calibration.
The TCS3404 and TCS3414 devices can help white-color balance a display panel or captured image in diverse lighting conditions and manage RGB LED backlighting to maintain color consistency over an extended period of time. They can also be used to automatically adjust the display brightness of a backlight to extend the battery life, increase lamp life, and provide optimum viewing in diverse lighting conditions.
The TCS3404 and TCS3414 devices automatically eliminate signal fluctuation resulting from AC lighting flicker without an external capacitor. Programmable analog gain and integration time support a dynamic range of 1,000,000-to-1. A synchronization input provides precise external control of the sensor's integration cycle allowing the internal conversion cycles to be synchronized to a pulsed or pulse-width-modulated light source. The synchronization mode can either be internally timed or externally timed. The manual timing control feature can be used to manually start and stop the integration time period. The device can support free-running and serial-bus-controlled integration modes.
The TCS3404 and TCS3414, measuring 2.095 x 1.875 x 0.685 mm, also provides an in-package trim capability that minimizes device-to-device and system-to-system tolerance allowing very precise repeatability to be attained. The devices offer a wide operating temperature range of -40° to 85°C and provide a 16-bit digital output with SMBus (TCS3404) at 100 KHz or I2C (TCS3414) at 400 KHz.
Pricing: $2.29 in quantities of 1,000.
Product information: TCS3414
TAOS, Inc. (Texas Advanced Optoelectronic Solutions), 1-972-673-0759, www.taosinc.com