SigmaTel Audio IC Drives Apple iPod Shuffle
Portelligent has confirmed that Apple iPod Shuffle MP3 player employs SigmaTel's D-Major STMP3550 MP3 audio decoder chip for audio processing.
SigmaTel's D-Major series audio decoders, including the STMP3550 [PDF file], target applications in portable MP3 players based on flash memory, where low power consumption is essential to permit extended battery life. The STMP3550, which enables digital signal processing on audio data at 75MHz, supports data transfer via Hi-Speed USB; an LED/LCD driver; AA, AAA, and lithium-ion batteries; playlist management; and both NAND flash memory and a variety of removable storage media such as SmartMedia, Secure Digital, and CompactFlash.
The Apple iPod Shuffle is the first portable music player in the iPod series to employ flash memory for the storage of audio data, as opposed to a micro hard disk drive. In previous iPods analyzed by Portelligent, including the original iPod, the 3G iPod 30GB, and the iPod Mini, Apple system designers have used audio ICs from Wolfson Micro in conjunction with Portal Player processors.
Source: press release
See also:
- Belkin Introduces New iPod Accessories
- Total Impact Industrial Ltd, Announces HardBody iPod Case
- Apple 60GB Color Photo iPod
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