A LOW POWER SERO BASED VCO IN 0,18-mu m CMOS PROCESS

作者：Jalil Jubayer^*; Reaz Mamun Bin Ibne; Sallah Siti Sarah Binti Md

来源：Tehnicki Vjesnik, 2014, 21(2): 271-274.

• complementary metal oxide semiconductor (CMOS)
• PLL
• single-ended ring oscillator (SERO)
• VCO

A 3-stage single-ended ring oscillator (SERO) based voltage controlled oscillator (VCO) has been proposed to operate from 2,4 GHz to 5,42 GHz for short range wireless communication systems, such as Wi-Fi, Bluetooth and Zigbee. Single-ended delay cell has been adopted to form the proposed VCO in standard 0,18-mu m CMOS process. This VCO consumes only 664,51 mu W of power. To achieve wide tune range of 55,72 %, control voltages are varied from 0,7 V to 1,8 V. The post-layout simulation result of phase noise is -107,59 dBc/Hz at 1 MHz offset from the centre frequency of 4,3 GHz. The circuit is designed and simulated using Mentor Graphics environment.

• 出版日期2014-4