| DC 欄位 |
值 |
語言 |
| DC.contributor | 電機工程學系 | zh_TW |
| DC.creator | 黃佳淳 | zh_TW |
| DC.creator | Jia-Chun Huang | en_US |
| dc.date.accessioned | 2006-7-20T07:39:07Z | |
| dc.date.available | 2006-7-20T07:39:07Z | |
| dc.date.issued | 2006 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=93521016 | |
| dc.contributor.department | 電機工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 在本論文中，描述一個類比前端電路，主要是以基頻接收端通訊系統應用為目標，應用在數位視頻廣播系統中。內包含一個經由數位控制的自動增益放大器和一個抗混淆濾波器。在接收端的信號路徑上包含一個可程式化增益放大器，這個類比的放大器擁有51dB 的動態增益範圍，並且由一階的數位控制迴路來自動調整其增益量。使其輸出可到達160mVpp。在輸入震幅也是160mVpp 的情況下，經由
雙端輸入模擬出的全諧波失真(THD)小於 -60dB。此設計已使用台灣積體電路公司所提供 0.18 微米 CMOS 製程製作。操作在1.8V 電壓下，消耗功率為13 毫瓦。緊接著這個自動增益放大器是一個頻寬為4MHz 的五階Chebyshev 低通濾波器，此外一個運算跨導放大器(OTA)將被運用在這個濾波器中。輸入震幅為160mVpp模擬出的全諧波失真(THD)小於 -60dB。操作電壓在1.8V，此電路將被驗證在佈局後(post-layout)的模擬上。 | zh_TW |
| dc.description.abstract | This paper describes a digitally controlled automatic gain control (AGC) and anti-aliasing
filter subsystems for the analog front-end (AFE), in which it can be used to support the digital video broadcasting in DZIF (double conversion with zero second IF) architecture. The receiving path contains a programmable-gain amplifier (PGA) with the self-tuning gain circuit. The dynamic range of the PGA, which is controlled by a digital loop to form a first order system, is 51dB. The third-harmonic distortion is less than -60dB for differential input signal up to 160mVpp. This chip has already been fabricated in a TSMC 0.18μm standard CMOS technology while the supply voltage is 1.8V and its power consumption is 13mW. Following the proposed AGC, a 4-MHz fifth-order Chebyshev low-pass Gm-C filter is also described in detail. In addition, an operational transconductance amplifier (OTA) with an additional enhanced amplifier structure is utilized to perform the voltageto-current conversion. The THD is less than -60dB over the input range of 160mVpp and the supply voltage is 1.8V. This proposed filter has also been completely verified by the post-layout simulation. | en_US |
| DC.subject | 濾波器 | zh_TW |
| DC.subject | 自動增益放大器 | zh_TW |
| DC.subject | 數位視頻廣播系統 | zh_TW |
| DC.subject | DVB-T/H | en_US |
| DC.subject | AGC | en_US |
| DC.subject | Filter | en_US |
| DC.title | 應用於數位視頻廣播系統中之自動增益放大器
及接受端濾波器設計 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Automatic Gain Control and Continuous-Time Receive Filter in DVB-T/H Receiver Design
| en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |