TEKNIK ELEKTRONIKA

The new AS3676 from austriamicrosystems incorporates highly-efficient and flexible power management for LED illumination with ambient light sense processing, light pattern generation, and audio synchronization for smartphones and portable devices.

The chip integrates 13 current sinks, a high-efficiency step-up DC-DC converter and high-power charge-pump, an analog-to-digital converter (ADC) and a programmable low drop-out regulator (LDO), all incorporated with advanced algorithms for high-efficiency display and keypad backlight, funlight, smartlight and other advanced portable illumination and indication effects.

With the AS3676 LMU, the integration of the main illumination features facilitates controlling all mobile lighting with a single chip. This simplifies hardware and software development time and shortens time to market. The features and flexibility of the AS3676 make it well suited for a number of portable consumer electronic products, including mobile phones, mobile TV’s, mobile DVD players, mobile GPS devices, and MP3 players.

With both ALS and DLS supported by the AS3676, power conservation thru automatic adjustment of backlighting and other LED functions is greatly simplified. In addition, built-in features like automatic dimming, pattern generation and audio sync function enable eye catching visual effects with minimum load on the baseband processor.

The AS3676 is available in a CS-WLP30, 3x2.5 mm package. It operates over a wide 3.0 to 5.5 V supply range, and over a temperature range of -30 to

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