| 数字电视解调芯片中高性能AGC电路的设计 |
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| 引用本文： | 梁坚,包莉娜,王匡,张明.数字电视解调芯片中高性能AGC电路的设计[J].江南大学学报(自然科学版),2004,3(4):345-347,352. |
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| 作者姓名： | 梁坚 包莉娜 王匡 张明 |
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| 作者单位： | 浙江大学,信息科学与工程学院,浙江,杭州,310027 |
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| 摘 要： | 针对传统的基于脉冲宽度调制的自动增益控制的不足，提出了一种用于数字电视解调芯片中基于脉冲密度调制的高性能自动增益控制设计方案．测试表明，这种方案克服了基于脉冲宽度调制的自动增益控制的收敛速度慢、环路稳定性差和外围元件体积庞大等缺点。
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| 关 键 词： | 自动增益控制 脉冲密度调制 Deha-Sigma |
| 文章编号： | 1671-7147(2004)04-0345-03 |
Design of High Performance AGC Circuit in Digital Television Demodulator |
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| LIANG Jian,BAO Li-na,WANG Kuang,ZHANG Ming.Design of High Performance AGC Circuit in Digital Television Demodulator[J].Journal of Southern Yangtze University:Natural Science Edition,2004,3(4):345-347,352. |
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| Authors: | LIANG Jian BAO Li-na WANG Kuang ZHANG Ming |
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| Abstract: | The paper presents the design of high performance AGC module based on pulse density modulation (PDM) technology in digital television demodulator to overcome the shortcoming of traditional AGC based on pulse width modulation (PWM). Test result shows that this design overcomes the weakness of long converge time, instability and large volume requirement of peripheral components in AGC based PWM. |
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| Keywords: | AGC PDM Delta-Sigma |
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