PT8401

Princeton Technology Corp. MP3 Audio Decoder Description Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT8401 The PT8401 is a single chip MPEG audio decoder capable of decoding all layers compressed elementary streams, as specified in MPEG 1 and MPEG 2 ISO standards. With external A/D converter, it can also compress incoming signal by using ADPCM algorithm, therefore it can also playback ADPCM bitstream. Features ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? Supports all the sampling frequency of MPEG1 (32/44.1/48KHz), MPEG2(16/22.05/24KHz) and MPEG2.5 Serial Bit Stream Input Interface I2S/Normal Audio Data Output Format delivered via an Serial Bus Power Saving Mode Support Supports DAC Master Clock (256*fs / 384*fs for 16 / 24 bit DAC) Built-in Tone and Digital Equalizer Control Bass Booster Function 3D Sound Effect Function Pause Function Fast Forward Function Available in 44-pin Plastic LQFP Package Applications ?? ?? ?? ?? ?? ?? Portable MP3 Player (Flash Memory Type) PDA with MP3 Player Cellular Phone with MP3 Player Hard Disk MP3 Player (IDE Interface) CD MP3 Player Digital Voice Recorder PT8401 v 1.3 Page 1 Updated March 2002 Princeton Technology Corp. MP3 Audio Decoder Block Diagram ?P Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT8401 Host Interface ROM PLL RAM DSP Core Frame Buffer Bitstream Input Output Buffer Serial Interface Audio Data Figure 1: PT8401 Block Diagram Typical Application Diagram Flash M...