30 MHz～512 MHz FSK/OOK双模射频发射机设计  

Design of 30 MHz～512 MHz FSK/OOK Dual-mode RF Transmitter

作　　者：徐永志 马骁[1] 张小宾 郑占旗[1] 廖安谋[1] 赵振亚 张立军[1] XU Yong-zhi;MA Xiao;ZHANG Xiao-bin;ZHENG Zhan-qi;LIAO An-mou;ZHAO Zhen-ya;ZHANG Li-jun(Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China;University of Chinese Academic of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院微电子研究所,北京100029 [2]中国科学院大学,北京100049

出　　处：《微电子学与计算机》2018年第11期57-61,共5页Microelectronics & Computer

摘　　要：本文实现了一种支持FSK,OOK双模式的射频发射机芯片.该发射机芯片集成了四阶二型锁相环和开关功放,内置环路滤波器,采用了偏置拷贝环路技术降低了电荷泵参考杂散,通过调整可配置分频网络的分频比,实现了30 MHz～512 MHz频率覆盖,改变小数分频的分频比和调整具有工艺、温度补偿特性的开关功放的通断实现FSK,OOK双模发射.该芯片采用SMIC 0.18μm 1P4M工艺,版图面积1.05mm*1.35mm,总体功耗为16mW.A CMOS transmitter supporting On-Off Keying（OOK）and Frequency Shift Keying（FSK）modulation is proposed.The transmitter integrating 4 th-order TypeⅡPhase-Locked Loop,a switched-mode PA and a built-in loop filter adopts a Replica_Bias_Loop technique to reduce charge pump reference spur,and achieves a 30 MHz-512 MHz frequency coverage by adjusting the configurable network frequency division ratio.FSK/OOK modulation is implemented by changing fractional frequency division ratio and switching power amplifier with process and temperature compensation on and off.Implemented in SMIC 0.18μm1 P4 Mprocess,the transmitter occupys an area of 1.05 mm＊1.35 mm and the overall power consumption is 16 mW from a 1.8 Vpower supply.

关 键 词：FSK/OOK 参考杂散 锁相环 

分 类 号：TN626[电子电信—电路与系统]