计算机工程与应用Issue(2)：45-49,5.DOI:10.3778/j.issn.1002-8331.1401-0352
一种转换时间可范围控制的MLVDS驱动器
A kind of MLVDS driver with transition-time controlled in certain range
摘要
Abstract
In order to realize the high speed data transmission between multi-chips, a Multi-point Low Voltage Differen-tial Signaling(MLVDS)driver for multi-point bus system is presented, which makes the transition-time controlled in a certain range. The main structure of driver consisting of complementary bridge switches can transfer TTL signals to CMOS voltage signals. This structure is proposed to weaken the output waveform distortion caused by substrate bias ef-fect. The pre-drive circuit with constant current charge-discharge circuit structure is used to change the signal slew rate. Meanwhile, by adding two clamping diodes to balance the signals in the output level, signal integrity is ensured. The MLVDS driver is implemented in GSMC 0.18 µm 1P4M CMOS process. The measurement results show that the differen-tial output amplitude is 550 mV and the rising time is 1.190 ns as well as the falling time goes to 1.159 ns when the fre-quency is 125 MHz, which meets the application requirement of the protocol TIA/EIA-899.关键词
转换时间/多点低压差分信号(MLVDS)驱动器/信号完整性/压摆率/阈值电压Key words
transition time/Multi-point Low Voltage Differential Signaling(MLVDS)driver/signal integrity/slew rate/threshold voltage分类
信息技术与安全科学引用本文复制引用
曹成成,曾云,赵建中,陈诚颖,李智..一种转换时间可范围控制的MLVDS驱动器[J].计算机工程与应用,2016,(2):45-49,5.基金项目
国家自然科学基金（No.61350007）。 （）
