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A 2.4-GHz ZigBee Transmitter Using a Function-Reuse Class-F DCO-PA and an ADPLL Achieving 22.6% (14.5%) System Efficiency at 6-dBm (0-dBm) P-out
Peng, Xingqiang; Yin, Jun; Mak, Pui-In; Yu, Wei-Han; Martins, Rui P.
2017-06
Source PublicationIEEE JOURNAL OF SOLID-STATE CIRCUITS
ISSN0018-9200
Volume52Issue:6Pages:1495-1508
AbstractThis paper describes a sub-1-V 2.4-GHz ZigBee transmitter (TX) with scalable output power (P-out) and system efficiency. It features a function-reuse class-F topology unifying the digital-controlled oscillator (DCO) and power amplifier (PA), designated as DCO-PA. Unlike the existing current-reuse topologies that rely on transistor stacking, here the power consumption of the DCO and PA-driver is absorbed into the DCO-PA without losing the voltage headroom, while allowing a low supply voltage. The DCO-PA also benefits from a six-port transformer with customized coupling coefficients and turn ratios to jointly perform the functions of resonant tank and output matching network, saving the chip area. A fractional-N all-digital phase-locked loop (ADPLL) realizes a two-point data modulation. Its phase-interpolated time-to-digital converter prevents time-consuming calibration. The entire TX fabricated in 65-nm CMOS occupies a 0.39-mm(2) active area. The standalone DCO-PA shows a peak efficiency of 26.2% at a 6-dBm P-out, and a back-off efficiency of 17.7% at a -4.3 dBm P-out under a scalable supply voltage (0.3-0.7 V). The system efficiency, including the ADPLL, is 22.6% (14.5%) at 6-dBm (0-dBm) P-out. The HS-OQPSK modulated output complies with the ZigBee spectral mask with an adequate margin and the error vector magnitude is 2.29%.
KeywordBack-off power efficiency class-F CMOS digital-controlled oscillator (DCO) matching network (MN) output power power amplifier (PA) transformer transmitter (TX) ultralow-power (ULP) ZigBee
DOI10.1109/JSSC.2017.2672990
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000402179800003
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
The Source to ArticleWOS
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Cited Times [WOS]:5   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Peng, Xingqiang,Yin, Jun,Mak, Pui-In,et al. A 2.4-GHz ZigBee Transmitter Using a Function-Reuse Class-F DCO-PA and an ADPLL Achieving 22.6% (14.5%) System Efficiency at 6-dBm (0-dBm) P-out[J]. IEEE JOURNAL OF SOLID-STATE CIRCUITS,2017,52(6):1495-1508.
APA Peng, Xingqiang,Yin, Jun,Mak, Pui-In,Yu, Wei-Han,&Martins, Rui P..(2017).A 2.4-GHz ZigBee Transmitter Using a Function-Reuse Class-F DCO-PA and an ADPLL Achieving 22.6% (14.5%) System Efficiency at 6-dBm (0-dBm) P-out.IEEE JOURNAL OF SOLID-STATE CIRCUITS,52(6),1495-1508.
MLA Peng, Xingqiang,et al."A 2.4-GHz ZigBee Transmitter Using a Function-Reuse Class-F DCO-PA and an ADPLL Achieving 22.6% (14.5%) System Efficiency at 6-dBm (0-dBm) P-out".IEEE JOURNAL OF SOLID-STATE CIRCUITS 52.6(2017):1495-1508.
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