Radio-Frequency Digital-to-Analog Converters：Implementation in Nanoscale CMOS

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Radio-Frequency Digital-to-Analog Converters：Implementation in Nanoscale CMOS
Radio-Frequency Digital-to-Analog Converters：Implementation in Nanoscale CMOS.rar (12.33 MB , 下载次数: 508 )

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The work on this RFDAC idea can be traced all the way back to 2001 when our small group at Texas Instruments (TI) was busy inventing new digital methods of realizing the traditional analog-intensive RF transceiver functions. The design of our first digital RF processor (DRP) for Bluetooth in 130 nm CMOS was coming to an end but we still needed to obtain some form of RF power regulation so that the transmitter (TX) would not produce too little or too much RF power. Hence, we added a few other transistors parallel to the main transistor of the switchedmode (thus, digital!) power amplifier operating in class-E mode (theoretically, up to 100% efficient!). Little did we know that those extra transistors would become extremely handy when another group from TI-Israel asked us to add amplitude modulation (AM) to the original frequency-modulated (FM) Bluetooth signal for the new extended data rate mode. The fully digital vector modulation (AM combined with FM) could not be made any much simpler: We just expanded the number of transistors from 8 to 256 to get the sufficient AM resolution in addition to the fine frequency resolution from an all-digital phase-locked loop (ADPLL), which was invented a couple of years earlier in the same DRP group as part of my part-time PhD research.

hfwxgl

thanks!!

xuleiwx

谢谢分享，是2017年的书

lhyi

Thanks

apteye

thanks you

jamesccp

好书。RFDAC/ADC开始流行了

wangjin0215

谢谢分享

student321

thanks

tu_yjq123

多谢分享

trash_net

謝謝分享