应用于全数字发射机的射频信号发生器  

A RF Signal Generator for All-digital Transmitter

作　　者：马志威[1] 赵阳 彭振飞[1] 刘洋 洪志良[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海201203 [2]ADI公司,上海201203

出　　处：《固体电子学研究与进展》2013年第3期271-275,共5页Research & Progress of SSE

基　　金：ADI公司合作项目

摘　　要：提出了一种应用于全数字发射机的射频信号发生器。设计中采用高速带通ΣΔ调制技术和对系数量化不敏感的有限长单位脉冲冲激响应(FIR)数字滤波技术,在保证速度和精度的同时,有效降低功耗。芯片采用TSMC65nm1P9M GP CMOS工艺实现。测试结果表明,在1.1V电源电压下,芯片可工作在1.408GHz,单频输入带内信噪比(SNR)为53.19dB。输入不同采样频率WCDMA信号时,调制器输出邻信道功率比(ACPR)均满足相关协议要求,最大功耗为32mW。A RF generator for all-digital transmitter is presented.High speed band-passΣΔ modulation and multi-stage FIR filter techniques are applied in the design to reduce power while assuring speed and accuracy.The chip is manufactured in TSMC 65 nm 1P9M GP CMOS process.Measurement results indicate that the chip could work at the frequency 1.408 GHz and the in-bandSNRfor inputting single tone signal is 53.19 dB when power voltage is 1.1 V.The ACPRof modulator output meet the requirements of WCDMA and the most consumption is 32 mW when WCDMA signal is processed.

关 键 词：全数字发射机 射频信号发生器 高速带通ΣΔ调制 有限长单位脉冲冲激响应滤波器 

分 类 号：TN713[电子电信—电路与系统] TN761.93