設計符合ZigBee低功率通訊發射系統之基頻展頻調變器

Designing the Baseband Spread-Spectrum and Modulation System of ZigBee Transmitter

楊銘峰(Ming-Feng Yang)

指導教授 ： 鍾文耀

中原大學/工學院/電子工程研究所/碩士(2006年)

https://doi.org/10.6840/cycu200600179

摘要

中 文 摘 要
隨著可攜式產品應用需求的增加，低功率無線通訊系統的重要性日趨為重。近年來ZigBee是個常被學界與業界爭相探究的通訊系統，它是一個以低功率消耗和低成本為訴求的通訊系統，透過此技術可使電池壽命延長幾個月甚至幾年。目前ZigBee通訊系統的應用主要以工業、家庭、醫學控制以及感測需要為目標，其傳送距離約從10到100公尺；並且可在全世界各個不同通訊區域傳輸（全球：2.4GHz，美國：915MHz或者是歐洲：868MHz）。由上述論點可知以低功率、低成本為導向的ZigBee通訊系統，將是未來無線通訊技術的明日之星。
本文旨在研發一個不論在2.4GHz、868/915MHz傳輸規格下皆可使用的ZigBee基頻展頻調變系統，利用Verilog硬體描述語言和Spice語言做硬體電路的設計；該ZigBee基頻展頻調變系統包含了IEEE802.15.4數位展頻調變電路和其對應的低功率高速數位類比轉換器。最終利用Xilinx FPGA和差動數位類比轉換器來驗證系統的準確性和可靠度，再者，使用TSMC 0.35μm 2P4M（Two Poly Four Metal）CMOS製程技術，達到全基頻展頻調變系統整合在同ㄧ顆晶片（System On Chip）之目的。

關鍵字

System On Chip ； 數位類比轉換器 ； TSMC 0.35μm 2P4M ； ZigBee ； 展頻調變

並列摘要

Abstract
The demand for wireless portable products in the market is getting more and more, therefore, a wireless communication system with low power consumption is crucial to the future. By using ZigBee technology could prolong a battery life to months or even years. In other words, ZigBee is a low power consumption and low cost communication system. Recently, the main applications of ZigBee are in industry, home, and medical instruments for controlling and sensing. The transmission range of ZigBee wireless system is about 10 to 100 meters and it can also function in every communication zone in the world （2.4GHz global, 915MHz Americas or 868 MHz Europe）.
In this study, we devise digital spread-spectrum, modulation circuit and with corresponding low power DAC based on ZigBee for both 2.4GHz and 915MHz/868MHz ISM band. We design the hardware with Verilog HDL and Spice Language. In the end, we make use of Xilinx FPGA demo board with differential DAC to verify the performance of the system and implement this system with TSMC 0.35um 2P4M CMOS （two poly four metal） process in order to reach the goal of system on chip.

並列關鍵字

System On Chip ； TSMC 0.35 μm 2P4M ； DAC ； Spread-Spectrum and Modulation ； ZigBee

參考文獻

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