A subharmonically injection-locked phase-locked loop (SIPLL) using a pulsewidth-calibrated loop is presented. The injection timing and the pulsewidth of the injected pulse are calibrated to tolerate the process variations. This SIPLL is fabricated in a 40-nm CMOS process. The measured output frequency ranges from 0.4 to 1.6 GHz. Its power is 1.49 mW for a supply of 1.1 V at 1.6 GHz. The root-mean-square jitter is 2.29 ps.
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Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Seoul Natl Univ, Interuniv Semicond Res Ctr, Coll Engn, Seoul 08826, South KoreaSeoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Choo, Min-Seong
Song, Yeonggeun
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Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Seoul Natl Univ, Interuniv Semicond Res Ctr, Coll Engn, Seoul 08826, South KoreaSeoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Song, Yeonggeun
Cho, Sung-Yong
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Samsung Elect, Hwaseong, Hwaseong, South KoreaSeoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Cho, Sung-Yong
Ko, Han-Gon
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Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Seoul Natl Univ, Interuniv Semicond Res Ctr, Coll Engn, Seoul 08826, South KoreaSeoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Ko, Han-Gon
Park, Kwanseo
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Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Seoul Natl Univ, Interuniv Semicond Res Ctr, Coll Engn, Seoul 08826, South KoreaSeoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Park, Kwanseo
Jeong, Deog-Kyoon
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Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
Seoul Natl Univ, Interuniv Semicond Res Ctr, Coll Engn, Seoul 08826, South KoreaSeoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea