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主页 > 支持 > 参考设计 > 无线 > WiMAX DUC and DDC Reference Designs 打印此页 发送此页 WiMAX DUC and DDC Reference Designs from Altera Corporation Please contact yourlocal Altera sales representativefor a copy of this reference design. Overview The WiMAX digital upconverter (DUC) and digital downconverter (DDC) reference designs demonstrate how system architects and hardware designers can accelerate the design of DUC and DDC functions for WiMAX basestations using Altera® devices, tools, and intellectual property (IP). The system design challenges associated with WiMAX DUC and DDC designs are illustrated and the companion reference designs act as a demonstration of how to overcome these challenges while achieving an optimized and cost-effective hardware implementation. Features DSP Builder-based design methodology to significantly reduce development time Multi-channel filter design techniques to achieve cost-effective solutions Highly parameterizable IP MegaCore® functions to further reduce development time Support for multiple transmit and receive antenna configurations Easily modifiable to support scalable channel bandwidths Compliant to the draft WiMAX standard (IEEE 802.16) Demonstrated Altera Technology DSP Builder Tool Cyclone® III FPGAs  Stratix® II FPGAs DSP Megafunctions Block Diagram Figures 1 and 2 show time division multiplexed DUC and DDC. Figure 1. Single Channel IQ Time Division Multiplexed DUC Notes: FIR = Finite impulse response. NCO = Numerically controlled oscillator. Figure 2. Single Channel IQ Time Division Multiplexed DDC Related Links AN 421: Accelerating WiMAX   DUC and DDC system designs WiMAX base station solutions Reference Designs Disclaimer These reference design illustrations may be used within Altera Corporation devices only and remain thecopyrighted property of Altera. They are being provided on an "as-is" basis and as an accommodation, and therefore all warranties, representations, or guarantees of any kind (whether express, implied, or statutory) including, without limitation, warranties of merchantability, non-infringement, or fitness for a particular purpose, are specifically disclaimed. Altera expressly does not recommend, suggest, or require that these examples be used in combination with any other product not provided by Altera. 给本页评分

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