A 10 b, 20 Msample/s, 35 mW pipeline A/D converter. - Thomas Byunghak Cho; Paul R. Gray (IEEE J. Solid State Circuits, 1995)

A 1.9-GHz wide-band IF double conversion CMOS receiver for cordless telephone applications. - Jacques C. Rudell; Jia-Jiunn Ou; Thomas Byunghak Cho; George Chien; Francesco Brianti; Jeffrey A. Weldon; Paul R. Gray (IEEE J. Solid State Circuits, 1997)

A 2.4-GHz dual-mode 0.18-μm CMOS transceiver for Bluetooth and 802.11b. - Thomas Byunghak Cho; David Kang; Chun-Huat Heng; Bang-Sup Song (IEEE J. Solid State Circuits, 2004)

A reconfigurable analog baseband for single-chip, Saw-less, 2G/3G/4G cellular transceivers with carrier aggregation. - Jongwoo Lee; Byungki Han; Jae-Hyun Lim; Su-Seob Ahn; Jae-Kwon Kim; Thomas Byunghak Cho (A-SSCC, 2014)

2.7 A hybrid supply modulator with 10dB ET operation dynamic range achieving a PAE of 42.6% at 27.0dBm PA output power. - Seung-Chul Lee; Ji-Seon Paek; Jun-Hee Jung; Yong-Sik Youn; Sung-Jun Lee; Min-Soo Cho; Jae-Jol Han; Jung-Hyun Choi; Yong-Whan Joo; Takahiro Nomiyama; Su-Ho Lee; Il-Young Sohn; et al. (ISSCC, 2015)

86.55% Peak efficiency envelope modulator for 1.5W 10MHz LTE PA without AC coupling capacitor. - Si-Duk Sung; Sung-Wan Hong; Jun-Suk Bang; Ji-Seon Paek; Seung-Chul Lee; Thomas Byunghak Cho; Gyu-Hyeong Cho (VLSIC, 2015)

20.7 An RF-PA supply modulator achieving 83% efficiency and -136dBm/Hz noise for LTE-40MHz and GSM 35dBm applications. - Ji-Seon Paek; Yong-Sik Youn; Jeong-Hyun Choi; Dong-Su Kim; Jun-Hee Jung; Young-Hwan Choo; Sung-Jun Lee; Seung-Chul Lee; Thomas Byunghak Cho; Inyup Kang (ISSCC, 2016)

A - 137 dBm/Hz Noise, 82% Efficiency AC-Coupled Hybrid Supply Modulator With Integrated Buck-Boost Converter. - Ji-Seon Paek; Seung-Chul Lee; Yong-Sik Youn; Dong-Su Kim; Jeong-Hyun Choi; Jun-Hee Jung; Young-Hwan Choo; Sung-Jun Lee; Jae-Yeol Han; Thomas Byunghak Cho (IEEE J. Solid State Circuits, 2016)

A Dynamically Biased Multiband 2G/3G/4G Cellular Transmitter in 28 nm CMOS. - Siddharth Seth; Dae Hyun Kwon; Sriramkumar Venugopalan; Sang Won Son; Yongrong Zuo; Venumadhav Bhagavatula; Jaehyun Lim; Dongjin Oh; Thomas Byunghak Cho (IEEE J. Solid State Circuits, 2016)

A reconfigurable analog baseband transformer for multistandard applications in 14nm FinFET CMOS. - Jongmi Lee; Jongwoo Lee; Chilun Lo; Jaehoon Lee 005; In-Young Lee; Byungki Han; Seunghyun Oh; Thomas Byunghak Cho (A-SSCC, 2017)

A 14nm FinFET analog baseband SOC for multi-mode cellular applications with tri-band carrier aggregation. - Byungki Han; Jongwoo Lee; Seunghyun Oh; Jae-Kwon Kim; Eswar Mamidala; Thomas Byunghak Cho (ISOCC, 2017)

24.8 A 14nm fractional-N digital PLL with 0.14psrms jitter and -78dBc fractional spur for cellular RFICs. - Chih-Wei Yao; Wing Fai Loke; Ronghua Ni; Yongping Han; Haoyang Li; Kunal Godbole; Yongrong Zuo; Sangsoo Ko; Nam-Seog Kim 001; Sangwook Han; Ikkyun Jo; Joonhee Lee; et al. (ISSCC, 2017)

A 14-nm 0.14-psrms Fractional-N Digital PLL With a 0.2-ps Resolution ADC-Assisted Coarse/Fine-Conversion Chopping TDC and TDC Nonlinearity Calibration. - Chih-Wei Yao; Ronghua Ni; Chung Lau; Wanghua Wu; Kunal Godbole; Yongrong Zuo; Sangsoo Ko; Nam-Seog Kim 001; Sangwook Han; Ikkyun Jo; Joonhee Lee; Juyoung Han; et al. (IEEE J. Solid State Circuits, 2017)

A 0.46-2.1 GHz Spurious and Oscillator-Pulling Free LO Generator for Cellular NB-IoT Transmitter with 23 dBm Integrated PAs in 28nm CMOS. - Jaewon Choi; Nam-Seog Kim 001; Juyoung Han; Thomas Byunghak Cho (A-SSCC, 2018)

A Ka-band Phase Shifting Low Noise Amplifier with Gain Error Compensation for 5G RF beam forming array using 14nm FinFET CMOS. - Youngmin Kim; Pilsung Jang; Joongseok Lim; Won Ko; Seungchan Heo; Jongwoo Lee; Thomas Byunghak Cho (ISCAS, 2018)

A 1.4-to-2.7GHz high-efficiency RF transmitter with an automatic 3FLO-suppression tracking-notch-filter mixer supporting HPUE in 14nm FinFET CMOS. - Qing Liu; Dae Hyun Kwon; Quang-Diep Bui; Jeong-Hyun Choi; Jaehun Lee; Sanghyun Baek; Seungchan Heo; Thomas Byunghak Cho (ISSCC, 2018)

A 2TX supply modulator for envelope-tracking power amplifier supporting intra- and inter-band uplink carrier aggregation and power class-2 high-power user equipment. - Takahiro Nomiyama; Yong-Sik Youn; Young-Hwan Choo; Dong-Su Kim; Jae-Yeol Han; Jun-Hee Jung; Jongbeom Baek; Sung-Jun Lee; Euiyoung Park; Jeong-Hyun Choi; Ji-Seon Paek; Jongwoo Lee; et al. (ISSCC, 2018)

A Sub-6GHz 5G New Radio RF Transceiver Supporting EN-DC with 3.15Gb/s DL and 1.27Gb/s UL in 14nm FinFET CMOS. - Jongwoo Lee; Sangwook Han; Joonhee Lee; Byoungjoong Kang; Jeongyeol Bae; Jaehyuk Jang; Seunghyun Oh; Su-Seob Ahn; Sanghoon Kang; Quang-Diep Bui; Kiyong Son; Hyungsun Lim; et al. (ISSCC, 2019)

An 88%-Efficiency Supply Modulator Achieving 1.08μs/V Fast Transition and 100MHz Envelope-Tracking Bandwidth for 5G New Radio RF Power Amplifier. - Ji-Seon Paek; Dong-Su Kim; Jun-Suk Bang; Jongbeom Baek; Jeong-Hyun Choi; Takahiro Nomiyama; Jae-Yeol Han; Young-Hwan Choo; Yong-Sik Youn; Euiyoung Park; Sung-Jun Lee; Ik-Hwan Kim; et al. (ISSCC, 2019)

A 90ns/V Fast-Transition Symbol-Power-Tracking Buck Converter for 5G mm-Wave Phased-Array Transceiver. - Ji-Seon Paek; Takahiro Nomiyama; Jae-Yeol Han; Ik-Hwan Kim; Yumi Lee; Dongsu Kim; Euiyoung Park; Sung-Jun Lee; Jongwoo Lee; Thomas Byunghak Cho; Inyup Kang (ISSCC, 2019)

A Sub-6-GHz 5G New Radio RF Transceiver Supporting EN-DC With 3.15-Gb/s DL and 1.27-Gb/s UL in 14-nm FinFET CMOS. - Jongwoo Lee; Kiyong Son; Hyungsun Lim; Daechul Jeong; Ilyong Jong; Sanghyun Baek; Jae Hoon Lee; Ronghua Ni; Yongrong Zuo; Chih-Wei Yao; Seungchan Heo; Sangwook Han; et al. (IEEE J. Solid State Circuits, 2019)

A 28-nm 75-fsrms Analog Fractional- $N$ Sampling PLL With a Highly Linear DTC Incorporating Background DTC Gain Calibration and Reference Clock Duty Cycle Correction. - Wanghua Wu; Chih-Wei Yao; Kunal Godbole; Ronghua Ni; Pei-Yuan Chiang; Yongping Han; Yongrong Zuo; Ashutosh Verma; Ivan Siu-Chuang Lu; Sang Won Son; Thomas Byunghak Cho (IEEE J. Solid State Circuits, 2019)

Design and Analysis of a 12-b Current-Steering DAC in a 14-nm FinFET Technology for 2G/3G/4G Cellular Applications. - Jaekwon Kim; Woojin Jang; Yanghoon Lee; Wan Kim; Seunghyun Oh; Jongwoo Lee; Jaehyuk Choi 001; Jung-Hoon Chun; Thomas Byunghak Cho (IEEE Trans. Circuits Syst. I Regul. Pap., 2019)

11.7 A Voltage-Tolerant Three-Level Buck-Boost DC-DC Converter with Continuous Transfer Current and Flying Capacitor Soft Charger Achieving 96.8% Power Efficiency and 0.87µs/V DVS Rate. - Jongbeom Baek; Takahiro Nomiyama; Seungchan Park; Young-Ho Jung; Dongsu Kim; Jae-Yeol Han; Jun-Suk Bang; Yumi Lee; Ik-Hwan Kim; Ji-Seon Paek; Jongwoo Lee; Thomas Byunghak Cho (ISSCC, 2020)

30.2 NB-IoT and GNSS All-in-One System-on-Chip Integrating RF Transceiver, 23dBm CMOS Power Amplifier, Power Management Unit and Clock Management System for Low-Cost Solution. - Jongsoo Lee; Jae-Yeol Han; Chilun Lo; Jongmi Lee; Wan Kim; Seungjin Kim; Byoungjoong Kang; Juyoung Han; Sangdon Jung; Takahiro Nomiyama; Jongwoo Lee; Thomas Byunghak Cho; et al. (ISSCC, 2020)

An RF Transceiver with Full Digital Interface Supporting 5G New Radio FR1 with 3.84Gbps DL/1.92Gbps UL and Dual-Band GNSS in 14nm FinFET CMOS. - Sangwook Han; Jaehyuk Jang; Jaeseung Lee; Daechul Jeong; Joonhee Lee; Jongsoo Lee; Chung Lau; Juyoung Han; Sung-Jun Lee; Jeongyeol Bae; Ikkyun Cho; Sang-Yun Lee; et al. (VLSI Circuits, 2020)

NB-IoT and GNSS All-In-One System-On-Chip Integrating RF Transceiver, 23-dBm CMOS Power Amplifier, Power Management Unit, and Clock Management System for Low Cost Solution. - Jongsoo Lee; Jae-Yeol Han; Chilun Lo; Jongmi Lee; Wan Kim; Seungjin Kim; Byoungjoong Kang; Juyoung Han; Sangdon Jung; Takahiro Nomiyama; Jongwoo Lee; Thomas Byunghak Cho; et al. (IEEE J. Solid State Circuits, 2020)

33.9 A Hybrid Switching Supply Modulator Achieving 130MHz Envelope-Tracking Bandwidth and 10W Output Power for 2G/3G/LTE/NR RF Power Amplifiers. - Dongsu Kim; Jun-Suk Bang; Jongbeom Baek; Seungchan Park; Young-Ho Jung; Jae-Yeol Han; Ik-Hwan Kim; Sung-Youb Jung; Takahiro Nomiyama; Ji-Seon Paek; Jongwoo Lee; Thomas Byunghak Cho (ISSCC, 2021)

6.1 A Low-Power and Low-Cost 14nm FinFET RFIC Supporting Legacy Cellular and 5G FR1. - Jongsoo Lee; Byoungjoong Kang; Seongwon Joo; Seokwon Lee; Joongho Lee; Seunghoon Kang; Ikkyun Jo; Suseop Ahn; Jaeseung Lee; Jeongyeol Bae; Won Ko; Woniun Jung; et al. (ISSCC, 2021)

32.2 A 14nm Analog Sampling Fractional-N PLL with a Digital-to-Time Converter Range-Reduction Technique Achieving 80fs Integrated Jitter and 93fs at Near-Integer Channels. - Wanghua Wu; Chih-Wei Yao; Chengkai Guo; Pei-Yuan Chiang; Pak-Kim Lau; Lei Chen; Sang Won Son; Thomas Byunghak Cho (ISSCC, 2021)

A 14-nm Ultra-Low Jitter Fractional-N PLL Using a DTC Range Reduction Technique and a Reconfigurable Dual-Core VCO. - Wanghua Wu; Chih-Wei Yao; Chengkai Guo; Pei-Yuan Chiang; Lei Chen; Pak-Kim Lau; Zhanjun Bai; Sang Won Son; Thomas Byunghak Cho (IEEE J. Solid State Circuits, 2021)

2-Tx Digital Envelope-Tracking Supply Modulator Achieving 200MHz Channel Bandwidth and 93.6% Efficiency for 2G/3G/LTE/NR RF Power Amplifiers. - Jun-Suk Bang; Dong-Su Kim; Jeongkwang Lee; Sung-Youb Jung; Young-Hwan Choo; Seungchan Park; Young-Ho Jung; Jae-Young Ko; Takahiro Norniyama; Jongbeom Baek; Jae-Yeol Han; Sang-Han Lee; et al. (ISSCC, 2022)

A Single-Crystal-Oscillator-Based Clock-Management IC with 18× Start-Up Time Reduction and 0.68ppm/ºC Duty-Cycled Machine-Learning-Based RCO Calibration. - Jaehong Jung; Seunghyun Oh; Joo-Myoung Kim; Gihyeok Ha; Jinhyeon Lee; Seungjin Kim; Euiyoung Park; Jaehoon Lee 005; Yelim Yoon; Seungyong Bae; Wonkang Kim; Yong Lim; et al. (ISSCC, 2022)

A Single-Path Digital-IF Receiver Supporting Inter/Intra 5-CA with a Single Integer LO-PLL in 14nm CMOS FinFET. - Barosaim Sung; Hyun-Gi Seok; Jaekwon Kim; Jaehoon Lee 005; Taejin Jang; Ilhoon Jang; Youngmin Kim; Anna Yu; Jong-Hyun Jang; Jiyoung Lee; Jeongyeol Bae; Euiyoung Park; et al. (ISSCC, 2022)

A 16-Channel, 28/39GHz Dual-Polarized 5G FR2 Phased-Array Transceiver IC with a Quad-Stream IF Transceiver Supporting Non-Contiguous Carrier Aggregation up to 1.6GHz BW. - Ashutosh Verma; Venumadhav Bhagavatula; Amitoj Singh; Wanghua Wu; Hariharan Nagarajan; Pak-Kim Lau; Xiaohua Yu; Omar Elsayed; Ajaypat Jain; Anirban Sarkar 002; Fan Zhang; Che-Chun Kuo; et al. (ISSCC, 2022)

A 5G FR2 Power-Amplifier With an Integrated Power-Detector for Closed-Loop EIRP Control. - Venumadhav Bhagavatula; Fan Zhang; Che-Chun Kuo; Anirban Sarkar 002; Ashutosh Verma; Tienyu Chang; Xiaohua Yu; Daeyoung Yoon; Ivan Siu-Chuang Lu; Sang Won Son; Thomas Byunghak Cho (IEEE J. Solid State Circuits, 2022)