New Industry Products

austriamicrosystems Offers Power & Audio Management Unit For Portable Devices

January 13, 2008 by Jeff Shepard

austriamicrosystems announced the product launch of its AS3658, described as a highly integrated power and audio management unit with sophisticated audio features. AS3658 is well suited for portable navigation devices, portable media players, smart phones, PDAs and a wide range of other battery powered handheld devices.

The AS3658 is said to offer an integrated solution for power supply generation, monitoring and battery management including charging. The charger can manage up to 1.6A charging current, suitable for fast charging of large batteries. USB, linear and step-down charging is available and supported by the unique battery isolation feature. The programmable power management functions of the AS3658 is said to significantly extend battery life with dc-dc efficiencies higher than 90%. The IC provides three highly efficient dc-dc step-down converters, two dc-dc step-up converters, three low noise LDOs suitable for RF applications, four digital LDOs, a low noise charge pump and a highly flexible backlight driver supporting a wide range of display sizes.

The AS3658 at the same time is said to offer high performance audio functions with a 18 bit audio DAC, a 16 bit audio ADC, a 5 band equalizer as well as headphone amplifiers, line-outputs, line-inputs, microphone inputs, audio mixer and several analog and digital audio interfaces. The unique ground noise cancellation feature is also said to deliver excellent sound quality in in-car environments. Moreover, a real time clock, 10 bit general purpose ADC and a touch screen interface are integrated to complete the extensive feature set of AS3658. Due to customizable PROM programmable startup sequences the IC matches a wide variety of application processors.

"With our software compatible integrated power management and audio products like AS3658 we have proven that combining the highest quality of audio and power management in one device offers outstanding performance", stated Markus Luidolt, Marketing Manager Mobile Consumer Devices at austriamicrosystems. "Our power management units with integrated audio can be found in millions of portable devices on the market today. AS3658 expands our product family offering higher charging currents, excellent audio quality and a perfect fit to the latest and next generation application processors. Moreover, AS3658 saves cost and time for system design integrating numerous functions which usually require multiple ICs from several vendors."

AS3658 is available in a BGA124, 8x8 mm, 0.5mm pitch package and is specified for -40 to +85°C ambient temperature