VS1001K

DATASHEET VS1001 K VS1001k - MPEG AUDIO CODEC Features MPEG audio layer 3 decoder (ISO11172-3) Supports MPEG 1 & 2, and 2.5 extensions, all their sample rates and bit rates, in mono and stereo Supports PCM input Supports VBR (variable bitrate) Can be used as a slave co-processor Operates with single clock 12..13 MHz or 24..26 MHz Extremely low-power operation On-chip high-quality stereo DAC with no phase error between channels Internal Op-Amp in BGA-49 and LQFP-48 packages Stereo earphone driver capable of driving a 30Ω load. Separate 2.5 .. 3.6V operating voltages for analog and digital 4 KiB On-chip RAM for user code Serial control and data interfaces New functions may be added with software Description VS1001k is a single-chip solution for an MPEG layer 3 audio decoder. The chip contains a highperformance low-power DSP processor (VS DSP), working memory, 4 KiB program RAM and 0.5 KiB data RAM for user applications, serial control and input data interfaces, and a high-quality oversampling variable-sample-rate stereo DAC, followed by an earphone amplifier and a ground buffer. VS1001k receives its input bitstream through a serial input bus, which it listens to as a system slave. The input stream is decoded and passed through a analog/digital hybrid volume control to an 18-bit oversampling multi-bit sigma-delta DAC. The decoding is controlled via a serial control bus. In addition to the basic decoding, it is possible to add application specific fea...