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CS49310 数据表(PDF) 24 Page - Cirrus Logic |
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CS49310 数据表(HTML) 24 Page - Cirrus Logic |
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24 / 90 page  CS49300 Family DSP 24 DS339F7 2. FAMILY OVERVIEW The CS49300 family contains system on a chip solutions for multichannel audio decompression and digital signal processing. The CS49300 family is split into 4 sub-families targeted at the DVD, broadcast and audio/video receiver (AVR), and effects and post processing markets. This document focuses on the electrical features and characteristics of these parts. Different features are described from a hardware design perspective. It should be understood that not all of the features portrayed in this document are supported by all of the versions of application code available. The application code user’s guides should be consulted to confirm which hardware features are supported by the software. The parts use a combination of internal ROM and RAM. Depending on the application being used, a download of application software may be required each time the part is powered up. This document uses “download” and “code load” interchangeably. These terms should be interpreted as meaning the transfer of application code into the internal memory of the part from either an external microcontroller or through the autoboot procedure. 2.1. CS493XX Document Strategy The documents described below are integral in defining the functionality and usage of the CS39300 family of DSPs. 1) CS49300 Datasheet (DS339) 2) CS49300 Errata - (ER339) - This document contain updates/corrections/exceptions to the datasheet. 3) Application Note (AN162) - This document contains firmware usage information for Broadcast Systems. It serves mainly to assist the microcontroller programmer but may also be highly useful to the system designer. 4) Application Note (AN163) - This document contains firmware usage information for Outboard Decoder Systems - e.g. AVR. It serves mainly to assist the microcontroller programmer but may also be highly useful to the system designer. Note: Please also contact your local Cirrus Logic FAE to obtain other relevant documents of new technology and also latest versions of the above mentioned documents. 2.2. Multichannel Decoder Family of Parts CS49300 - DVD Audio Decoder. The CS49300 device is targeted at audio decoding in the DVD via ES or PES in a serial or parallel bursty fashion for MLP or for DVD Audio Pack Layer Support. (All the other decoding/processing algorithms listed below require delivery of PCM or IEC61937-packed compressed data via I2S or LJ formatted digital audio to the CS49300). Specifically the CS49300 will support all of the following decoding/processing standards: • Meridian Lossless Packing™ (MLP™)* (for ES and PES data delivery only) • DVD Audio Pack Layer Support* (for ES and PES data delivery only) • Dolby Digital™ (AC-3™) with Dolby Pro Logic™ • Dolby Digital™ with Dolby Pro Logic™ plus Cirrus Extra Surround™ • Dolby Digital™ with Dolby Pro Logic II™ • Dolby Digital™ with Dolby Pro Logic II™ plus Cirrus Extra Surround™ • Virtual Dolby Digital™ • MPEG-2, Advanced Audio Coding Algorithm (AAC) • MPEG Multichannel • MPEG Multichannel with Dolby Pro Logic II™ • MPEG Multichannel plus Cirrus Extra Surround™ • MPEG-1, Layer 3 (MP3) • DTS Digital Surround™ • DTS Digital Surround™ with Dolby Pro Logic II™ • DTS Digital Surround™ plus Cirrus Extra Surround™ • DTS-ES Extended Surround™ (DTS-ES Discrete 6.1 & Matrix 6.1) • DTS Neo:6™ •LOGIC5® (5.1 Channel, Max Fs=48kHz and LOGIC7® (7.1 Channel, Max Fs=96kHz) • VMAx VirtualTheater® (Virtual Dolby Digital) • SRS TruSurround™ (Virtual Dolby Digital and |
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