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ML2841 pdf datasheet (equipped
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ML2841 , a sound chip equipped with a 64 polyphonic sound generator and an MP3 decoder. Oki succeeded in reducing the power consumption of long-period MP3 playback on mobile phones down to 32mW, a decrease of approximately 80% compared to previous products.
Oki succeeded in reducing three notable parameters for the ML2841 . First, it decreased the MP3 decoder power consumption from 57mW to 5mW. Secondly, by applying a digital amplifier, it reduced the headphone amplifier power consumption down to 32mW, an 80% decrease. Finally, it reduced the total cost by utilizing the mobile phone platform and optimizing specifications as necessary. With these achievements, Oki completed an experiment to play back music for 30 hours non-stop by connecting the chip to a GSM mobile phone platform and a 1000mAh battery. Theoretically, it can extend playback time to 60 hours by improving the software for the mobile phone platform.
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