Reconfigurable Signal Processing and DSP Hardware Generator for 5G Transmitters
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Date
2022-10-26
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Language
en
Pages
7
1-7
1-7
Series
2022 IEEE Nordic Circuits and Systems Conference, NORCAS 2022 - Proceedings
Abstract
To impose the reconfigurability and reusability of digital circuits for millimeterwave transmitter architectures, high-speed digital signal processing architectures are explored. The digital front-end of these next-generation transmitters can be implemented up to the maximum operating frequency to meet the requirements of the 5G NR FR2 frequency bands. This paper presents an efficient implementation of a reconfigurable digital signal processor (DSP) that contains programmable multistage multirate filters, operable up to 4 GHz, and a flexible generator for polar, outphasing, and multilevel outphasing modulation. The system achieves an excellent ACLR of 42 dB and EVM degradation of 1.61% with a 7-bit phase signal at a sampling frequency of 4 GHz for outphasing modulation. Digital synthesis of the circuit in a 22 nm FDSOI process results in a core area of 0.12 mm2and an estimated power consumption of 142 mW for a 200 MHz bandwidth 5G NR baseband signal.Description
Keywords
digital signal processing (DSP), 5G, Reconfigurable hardware, Digital Front-end, System on Chip, Outphasing, Transmitter
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Citation
Ghosh, A, Spelman, A, Cheung, T H, Boopathy, D, Unnikrishnan, V, Lampu, V, Xu, G, Anttila, L, Stadius, K, Kosunen, M & Ryynänen, J 2022, Reconfigurable Signal Processing and DSP Hardware Generator for 5G Transmitters . in J Nurmi, D T Wisland, S Aunet & K Kjelgaard (eds), 2022 IEEE Nordic Circuits and Systems Conference, NORCAS 2022 - Proceedings ., 9934696, IEEE, pp. 1-7, IEEE Nordic Circuits and Systems Conference, Oslo, Norway, 25/10/2022 . https://doi.org/10.1109/NorCAS57515.2022.9934696
