A Compact Automatic Gain Control Loop for GNSS RF receiver

摘要：

A compact automatic gain control (AGC) loop for GNSS RF receiver is presented in this paper. The proposed AGC loop circuit achieves higher integration and lower power by eliminating the bulky off-chip capacitor and charge pump circuit, which are widely used in traditional AGC. The proposed AGC consists of a programmable gain amplifier (PGA), a 2-bit flash analog to digital converter (ADC), and a novel AGC unit. The proposed AGC loop circuit is implemented in a 0.18μm CMOS process, and occupies a die area of 0.275mm~2. Simulation results show that the proposed AGC loop has a 29.5dB control range and a settling time of less than 0.25 ms.

作者: Mingxing Zhou Chaojie Fan Dongpo Chen Cui Mao

作者单位: Center for Analog/RF Integrated Circuits (CARFIC), School of Microelectronics Shanghai Jiao Tong University, Shanghai 200240, China

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 284-286

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）