《mp3hufdec》.pdf

V L S I I P O W N E D B Y A V I R A L M I T T A L Mp3HufDec DATA SHEET AND USER GUIDE Evaluation notes were added to the output document. To get rid of these notes, please order your copy of ePrint IV now. Mp3HufDec ISO 11172 -3 LAYER III HUFFMAN DECODER. ISO 11172-3 Layer III or commonly called as Mp3, employs Huffman encoding technique to compress data, along with other compression schemes. Our product Mp3HufDec is designed to ‘decode’ the Huffman coded data present in an Mp3 encoded file. Its written using VHDL, and is fully synthesizeable. Main Features:  Synthesizeable single clock VHDL RTL core, with testbench.  No memory Decoder : it dos NOT use any memory to decode the incoming bit stream  No latency Decoder: O/p values are produced at the very next clock edge, as the corresponding input is received by the decoder.  Low Gate Count : Less than 5K gates on TSMC 0.18u Tech  Designed using ‘HufGen’ : our tool for generic Huffman Decoder Design  Low licensing Cost: $4000 for Single Use Source. What is the Huffman Decoder supposed to do? As per the specifications, of ISO 11172-3 Layer III, the frequency spectrum of the audio signal is packed in the bit stream as 2 granules per frame for each channel(the number of channels can be either 1 or 2), and each granule is consist of 576 frequency samples, or frequency lines. Out of these 5