Wide range PLL for 64X speed CD-ROMs & 10X speed DVD-ROMs

被引：11

作者：

Lee, Jae Shin ^{[1
]}

Jin, Woo Kang ^{[1
]}

Choi, Dong Myung ^{[1
]}

Lee, Gun Sang ^{[1
]}

Kim, Suki ^{[1
]}

机构：

[1] Korea Univ, Seoul, Korea, Republic of

来源：

| 2000年 / IEEE, Piscataway, NJ, United States卷 / 46期

关键词：

CMOS integrated circuits - Electric currents - Phase locked loops - Variable frequency oscillators;

D O I：

10.1109/30.883399

中图分类号：

学科分类号：

摘要：

In this paper, we propose a wide range PLL(Phase Looked Loop) for 64X speed CD-ROMs and 10X speed DVD-ROMs. In order to develop a PLL with a wide locking range we designed dual loop scheme consists of a frequency detection loop and phase detection loop. The PLL has a locking range of 75 MHz approximately 370 MHz. A new V-I converter and a differential delay cell are used in a 3-stage ring VCO to reduce jitters. In addition, we propose a new charge pump which has perfect current matching characteristics for sourcing/sinking currents. This new charge pump improves the phase offset that reduce locking range of the PLL. Implemented in a 0.25 um, 1-poly 5-metal CMOS process. It occupies an active area of 1.8 mm * 1.1 mm.

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