题目/Title：A 1.9mW 750kb/s 2.4GHz F-OOK transmitter with symmetric FM template and high-point modulation PLL

作者/Author：张益宁,周冉冉,李宇根,王志华
                        Yining Zhang,Ranran Zhou,Woogeun Rhee,Zhihua Wang

会议/Conference：A-SSCC 2016

地点/Location：

年份/Issue Date：2016.7-9 Nov.

页码/pages：pp. 277 - 280

摘要/Abstract：
This paper proposes a frequency-domain OOK (F-OOK) modulation method which utilizes power detection of both a carrier and a sideband by modulating the carrier frequency with a pre-selected modulation template. Unlike the conventional OOK modulation, the carrier waveform in the time domain can be always present regardless of data pattern, thus offering a packet-level duty cycle operation without affecting overall spectrum occupation. Compared to the BFSK modulation, more efficient bandwidth control can be achieved for the same data rate with a symmetric FM template. The F-OOK signal is generated by a PLL based modulator in which only high-pass modulation is performed, which is different from the conventional two-point modulation, thus significantly relaxing design complexity. A prototype transmitter implemented in 65nm CMOS consumes 1.9mW from a 0.8V supply with a data rate of 750kb/s, achieving an energy efficiency of 2.5nJ/bit.