Automatic Frequency Detection Circuit for First Intermediate Frequency of DRM/DAB Receivers

摘要：

This paper presents skills to reduce the detection time and assure the frequency grid of the automatic frequency detector circuit in a DRM/DAB receiver.To support minimum receiver requirements for DRM “Draft Version 1.21,we introduce an automatic frequency detector (AFD) technique for the low-IF receiver,which uses a new detect algorithm to improve detector speed.The simulation results show that the detect time and the frequency grid meet the requirements of DRM “Draft Version 1.21.The AFD circuit is designed with SMIC 0.18 μm RF CMOS process.Post-simulation results show that the minimum detection time is 1.748 ms.It consumes 0.64 mW under a 1.8 V supply.The core area is 0.15×0.18mm2.

作者: Xuemei Lei Zhigong Wang Keping Wang

作者单位: Institute of RF- & OE-ICs,Southeast University,Sipailou 2,210096 Nanjing,China;Inner Mongolia Univer Institute of RF- & OE-ICs,Southeast University,Sipailou 2,210096 Nanjing,China

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）