THE VSD - VIRTUAL SURROUND DECODER REFERENCE DESIGN BOARD Solutions Zoran Corporation 3112 Scott Boulevard Santa Clara, CA 95054-3317 ZR7386001 Product Brief on a Chip T e l 408.919.4 1 1 1 Fax 408.919.4122 www.zoran.com Benefits Overview The Virtual Surround Decoder (VSD) (ZR7386001) is a stand-alone reference design board which integrates the Zoran® ZR38600 or ZR38601 digital audio signal processor with external components to decode a Dolby Digital bit-stream into any one of six popular 3-D virtual surround sound fields, for reproduction using a conventional two-channel stereo amplifier and speakers. Three headphone algorithms are also available which allow private listening with speakerlike per-formance. The popular algorithms shown below may be selected by the on-board hex switch. The ZR38600 is a 40 MIPS programmable digital audio signal processor that performs Dolby Digital decoding from program instructions located on-chip, and provides an extra 10 MIPS for additional processing tasks. The ZR38601 provides an extra 20 MIPS as well as an additional 1K words of on-chip RAM. The extra MIPS are used to produce two-channel virtual 3-D surround using algorithms whose program and data are conveniently stored in the on-board EPROM. Other ZR38600/1 post-decoding applications such as bass redirection, bass and treble equalization, or the creation of music modes such as Stadium, Jazz Club, Concert, and Natural are possible. See below for a list of the virtual surround algorithm suppliers. Zoran will assist qualified customers with third-party licensing issues. This proven reference design will significantly shorten the critical time-tomarket for OEM customers. Features ● ● ● ● ● ● Dolby Digital and MPEG decoding plus Virtual 3-D surround Choice of six virtual 3-D surround speaker algorithms Choice of four virtual 3-D surround headphone algorithms Accurate, proven reference design Production-ready design example with documentation Uses proven low-cost components throughout ● ® SiliconSoftware in EPROM: - Virtual Multichannel Digital (VMD) (Zoran) - A3D (Aureal) - Dolby Virtual Surround - N-2-2 (Spatializer) - QSurround (QSound) - TruSurround (SRS) - VMAx (Harman) Dolby Digital In S/PDIF or PCM Virtual 3-D Digital Surround Out S/PDIF or PCM I/O Port Virtual 3-D Algorithm Select Zoran ZR38600/1 Digital Audio Processor Digital/Analog In Mode Virtual/Stereo I/O Port Stereo or Matrix Analog In CODEC Virtual 3-D Analog Surround Out VSD Board Block Diagram 12/00-LD1500 ZR7386001-PB-3.0 THE VSD - VIRTUAL SURROUND DECODER REFERENCE DESIGN BOARD ZR7386001 Schematic Zoran and SiliconSoftware are registered trademarks of Zoran Corporation. All other trademarks are property of their respective owners. For more information, contact Zoran's Santa Clara office or the office nearest you: Israel Zoran Microelectronics Ltd. Advanced Technology Ctr. P.O. Box 2495 Haifa, 31024 Israel Te l : +972-4-8545-777 Fax: +972-4-8551-551 12/00-LD1500 China Zoran China Office Suite 2507 Electronics Science & Tech Building 2070 Central Shennan Rd. Shenzhen, Guangdong, 518031 P.R. China Te l : +86-755-378-0319 Fax: +86-755-378-0852 Japan Zoran Japan Office 2-2-8 Roppongi, Minato-ku Tokyo 106-0032, Japan Te l : +81-03-5574-7081 Fax: +81-03-5574-7156 Taiwan Zoran Taiwan Office 4F-1, No. 5, Alley 22 Lane 513, Reikuang Rd. Taipei, Taiwan R.O.C. Te l : +886-2-2659-9797 Fax: +886-2-2659-9595 Canada Zoran Toronto Lab 2175 Queen St. East, Suite 302 Toronto, Ontario M4E 1E5 Canada Te l : (416) 690-3356 Fax: (416) 690-3363 ZR7386001-PB-3.0