Development of Digital Brightness Sensor IC for Mobile phones by ROHM
With an increasing demand for higher functionality on mobile phones power saving on these little gadget is becoming a mundane task. One way to the over all power usage of the mobile phone is through minimizing it LCD backlight power usage. In order to achieve such power saving objectives manufacturers of mobile phones implement some sort of brightness control usually via a microcontroller and LED driver along with an ambient light sensor requiring a relatively fast bus speed. As result of this, in response to faster internal transmission speeds in mobile phones to keep up with an increasing pace in addition of new functionality on these devices, ROHM made an announcement on development of industry’s first digital ambient light sensor IC compatible with I2C bus Hs (High-speed) mode. Read more
