基于0.18μm CMOS工艺的ZigBee分频器设计  

Design of Zig Bee frequency divider based on 0.18 μm CMOS technology

作　　者：蒋雪琴[1] 

机构地区：[1]四川信息职业技术学院,四川广元628017

出　　处：《现代电子技术》2015年第23期71-75,共5页Modern Electronics Technique

摘　　要：为了降低ZigBee分频器的能量消耗，提出一种适用于2．45GHz频率的超低功率COMS分频器，可以用于2．45GHz整数分频锁相环频率合成器中，适用于ZigBee准网络。提出的分频器在吞脉冲分频器的基础上，通过一个简单的数字电路取代吞咽计数器，从而降低了功率消耗和设计复杂性。该分频器的模量可以在481-496之间调整。所有的电路设计都基于0．16μm的TSMCcM0s技术，使用1．8V直流电压供电。仿真结果显示，在2．45GHzISM频段中4b分频器的功耗为420μW，相比之前类似分频器减少了40％。To reduce the energy consumption of ZigBee frequency divider, an ultra-low power CMOS frequency divider is proposed, which can be used in the frequency synthesizer of 2.45 GHz integer frequency division phase locked loop and ZigBee standard network. Based on the swallow pulse divider, a swallow counter is replaced by a simple digital circuit to reduce the power consumption and design complexity. The modulus of the divider can be adjusted from 481 to 496. All circuits design is based on TSMC CMOS technology of 0.16 μm, in which the circuit is supplied with 1.8 V DC voltage. The simulation results show that the power consumption of the 4 bits divider is 420 μW in 2.45 GHz ISM band, and reduced by 40% in comparison with that of the previous similar frequency divider.

关 键 词：吞咽分频器 整数分频锁相环 双模量前置分频器 ZIGBEE 

分 类 号：TN912.26[电子电信—通信与信息系统]