austriamicrosystems Presents Fourth Generation Audio Front End
(Product News, 8 Jan 2008)
austriamicrosystems extends its audio front end portfolio with a new device that achieves unprecedented low power consumption at an exceptionally high audio performance by featuring a sub 7mW stereo DAC at over 100dB SNR. The AS3543 is the latest member of a comprehensive family of integrated audio and power management devices that combine in a single chip all system analog functions required around a digital system-on-chip (SoC) for mobile entertainment products.
The AS3543 is a flexible and highly integrated audio and power management device, which includes functions such as low power stereo audio DACs and ADCs with line audio output and input, microphone input, headphone amplifier with direct drive capabilities, battery charging for Li-ion, efficient DC/DC step-up/step-down power converters, LDOs, ultra low power RTC, battery switch and high voltage backlight power unit. Advanced power management techniques such as dynamic voltage with frequency scaling or adjustable DC/DC converters enable high efficiency over a wide range of current loads.