| Autor: |
Yeat Yang, Hao Wu, Khanh Thai, Leland Gilreath, Rob Snyder, Monte Watanabe, Jasmine Patel, Mau-Chung Frank Chang, Tim LaRocca, Colin Wong, Yi-Cheng Wu |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). |
| DOI: |
10.1109/rfic.2013.6569604 |
| Popis: |
A 45GHz 64QAM system-on-chip (SoC) CMOS transmitter with digitally-assisted power amplifiers (DAPA) is presented. The SoC includes a 7M gate ASIC with 9b reconfigurable symbol mapping, 8X upsampling, 161tap pulse shape filtering, IQ imbalance correction and DAPA envelope/time estimation. The ASIC feeds two 10b IQ current-steering DACs and active IQ modulator. A unique transformer splitting up converter drives eight parallel combined DAPAs. The chip is packaged in aluminum housing with WR22 outputs. A 64QAM signal achieves 1.8% EVM with 33dBc ACPR at 45GHz. The data rate is 450Mbps and the integrated output power exceeds -10dBm. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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