一种模数混合结构的延迟锁相环设计

Design of A Kind of Hybrid-structure Delay Locked Loop

数字系统通信的不断发展,多种延迟锁相环结构的出现满足了不同应用要求。提出了一种模/数混合结构的延迟锁相环,改善了传统模拟锁相环和传统数字锁相环各自的缺点,在数字系统中作为集成电路模块单元使用。采用TSMC的0.25μm,1P5M,CMOS混合信号工艺进行加工制备,模块单元面积140×190μm2。

With the development of digital communication system, the advent of several structures of delay locked loop can satisty the demand of specs in different applications. An analog - digital hybrid - structural delay locked loop,as an IC - modular utilized in a large scale digital system, which improved the drawbacks of traditional analog DLL and digital DLI,＇, is described in this paper. TSMC 0.25μm, 1PSM,CMOS mixed -signal process are used in the circuit with the modular area of 140 ×190μm2.