TY - GEN
T1 - A Single-Supply Single-Core Inverse Class-D Digital Power Amplifier with Enhanced Power Back-Off Efficiency Adopting Output Power Scaling Technique
AU - Choi, Kyung Sik
AU - Ko, Jinho
AU - Lee, Sang Gug
N1 - Publisher Copyright:
© 2021 JSAP.
PY - 2021/6/13
Y1 - 2021/6/13
N2 - This work presents a current-mode inverse Class-D digital PA (DPA) with enhanced power back-off (PBO) efficiency. The PA adopts extra switches, which allows the scaling in the output voltage swing by half, leading to (theoretically) 6 dB enhancement in PBO efficiency while maintaining (ideally) 100% drain efficiency (DE). Implemented in a 65 nm CMOS, the proposed DPA shows the improvement in DE by ×1.5 at 4.2 dB PBO in comparison with normalized Class-B PA while requiring only one transformer and single-supply voltage.
AB - This work presents a current-mode inverse Class-D digital PA (DPA) with enhanced power back-off (PBO) efficiency. The PA adopts extra switches, which allows the scaling in the output voltage swing by half, leading to (theoretically) 6 dB enhancement in PBO efficiency while maintaining (ideally) 100% drain efficiency (DE). Implemented in a 65 nm CMOS, the proposed DPA shows the improvement in DE by ×1.5 at 4.2 dB PBO in comparison with normalized Class-B PA while requiring only one transformer and single-supply voltage.
UR - https://www.scopus.com/pages/publications/85111814108
U2 - 10.23919/VLSICircuits52068.2021.9492341
DO - 10.23919/VLSICircuits52068.2021.9492341
M3 - Conference contribution
AN - SCOPUS:85111814108
T3 - IEEE Symposium on VLSI Circuits, Digest of Technical Papers
BT - 2021 Symposium on VLSI Circuits, VLSI Circuits 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th Symposium on VLSI Circuits, VLSI Circuits 2021
Y2 - 13 June 2021 through 19 June 2021
ER -