| Autor: |
Yuki Genkaku, Kotaro Onda, Syuji Okage, Michitaka Yoshino, Satoshi Saikatsu, Akira Yasuda |
| Rok vydání: |
2022 |
| DOI: |
10.21203/rs.3.rs-1610320/v1 |
| Popis: |
This paper proposes a multi-bit ΔΣ down-converting analog-to-digital converter (DC-ADC) using an even harmonic mixer (EHMIX) and mismatch shaper to realize software radios and digital radio frequencies. This converter achieves high signal-to-noise-and-distortion ratio (SNDR) and contributes to the realization of high-speed, low-power wireless communication systems. For conversion errors caused by element variation (mismatch) in multi-bit digital-to-analog converters (DAC), mismatch shapers called data weighted averaging (DWA) and noise shaping dynamic element matching (NSDEM) are used. In this paper, we propose multi-bit ΔΣ DC-ADC with EHMIX and mismatch shaper. Simulink estimated SNDR improved by − 26 dB in 4-bit first-order ΔΣ DC-ADC with EHMIX and DWA − 38 dB in 4-bit second-order ΔΣ DC-ADC with EHMIX and NSDEM. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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