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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| Online-Zugang: | https://arxiv.org/abs/2603.05127 |
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| _version_ | 1866910042386595840 |
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| author | Hemza, Mohamed Aiham Alvarado, Alex Herman, Krzysztof Kaul, Piyush |
| author_facet | Hemza, Mohamed Aiham Alvarado, Alex Herman, Krzysztof Kaul, Piyush |
| contents | Spectrally-efficient communication systems rely on the use of multi-level modulation formats. At the receiver side, a demodulator is often used to extract soft information about the transmitted bits. Such a demodulator is typically implemented in the digital domain. However, analog implementations of such demodulators are also possible. In this paper, we design and simulate an analog 8-ary pulse-amplitude modulation (8-PAM) demapper in IHP SG13G2 SiGe BiCMOS technology. We generalize and improve a design available in the literature for 4-PAM. A fully MOSFET-based 8-PAM design is proposed. Our simulations and design are completely based on open-source IC design tools. Our results show an energy efficiency of 0.33 pJ/bit for a data rate of 1Gbit/s. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_05127 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A Fully Open-source Implementation of an Analog 8-PAM Demapper for High-speed Communications Hemza, Mohamed Aiham Alvarado, Alex Herman, Krzysztof Kaul, Piyush Signal Processing Spectrally-efficient communication systems rely on the use of multi-level modulation formats. At the receiver side, a demodulator is often used to extract soft information about the transmitted bits. Such a demodulator is typically implemented in the digital domain. However, analog implementations of such demodulators are also possible. In this paper, we design and simulate an analog 8-ary pulse-amplitude modulation (8-PAM) demapper in IHP SG13G2 SiGe BiCMOS technology. We generalize and improve a design available in the literature for 4-PAM. A fully MOSFET-based 8-PAM design is proposed. Our simulations and design are completely based on open-source IC design tools. Our results show an energy efficiency of 0.33 pJ/bit for a data rate of 1Gbit/s. |
| title | A Fully Open-source Implementation of an Analog 8-PAM Demapper for High-speed Communications |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2603.05127 |