A high speed direct digital frequency synthesizer based on multi-channel structure  

作　　者：袁凌 张强 石寅 

机构地区：[1]Institute of Semiconductors, Chinese Academy of Sciences

出　　处：《Journal of Semiconductors》2015年第6期131-135,共5页半导体学报（英文版）

摘　　要：This paper presents a direct digital frequency synthesizer （DDFS） for high speed application based on multi-channel structure. This DDFS has phase resolution of 32 bits and magnitude resolution of 12 bits. In order to ensure the high speed and high resolution at the same time, the multi-channel sampling technique is used and a 12 bits linear digital-to-analog converter is implemented. The chip is fabricated in TSMC 130 nm CMOS technology with active area of 0.89 x 0.98 mm2 and total power consumption of 300 mW at a single 1.2 V supply voltage. The maximum operating speed is up to 2.0 GHz at room temperature.This paper presents a direct digital frequency synthesizer （DDFS） for high speed application based on multi-channel structure. This DDFS has phase resolution of 32 bits and magnitude resolution of 12 bits. In order to ensure the high speed and high resolution at the same time, the multi-channel sampling technique is used and a 12 bits linear digital-to-analog converter is implemented. The chip is fabricated in TSMC 130 nm CMOS technology with active area of 0.89 x 0.98 mm2 and total power consumption of 300 mW at a single 1.2 V supply voltage. The maximum operating speed is up to 2.0 GHz at room temperature.

关 键 词：direct digital frequency synthesizer （DDFS） MULTI-CHANNEL phase-to-sine-amplitude converters（PSAC） 

分 类 号：TN741[电子电信—电路与系统] TM621[电气工程—电力系统及自动化]