多通道高速直接数字频率合成器

本文提出了一款具有32位相位精度，输出12位精度的高性能直接数字频率合成器。该直接数字频率合成器通过多通道采样技术和12位精度的数模转换器，使其同时具有高速和高精度的特性。该芯片采用130nm标准CMOS工艺制造，核心区域面积为0.89mm×0.98mm，在1.2V单电源供电情况下，总功耗约为300mW，室温条件下，最大时钟工作频率为2.0GHz。

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

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 × 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.