A 0.0018-mm2 153%-Locking-Range CML-Based Divider-by-2 with Tunable Self-Resonant Frequency Using an Auxiliary Negative-gm Cell

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	A 0.0018-mm2 153%-Locking-Range CML-Based Divider-by-2 with Tunable Self-Resonant Frequency Using an Auxiliary Negative-gm Cell
	Zhao, X.; Chen, Y.; Mak, P. I.; Martins, R. P.
	2019-07-22
Source Publication	IEEE Transactions on Circuits and Systems I: Regular Papers
ISSN	1558-0806
Pages	3330-3339
Abstract	This paper presents an area-efficient current-mode-logic (CML)-based divider, with a tunable self-resonant frequency for locking range (LR) extension. Specifically, a negative- $g_{m}$ (NG) cell is inserted between the resonated shunt-peaking inductor and the load resistor to shift the divider’s sensitivity curve (SC), enabling concurrently a higher operating frequency and a wider LR. We also use the injection-locking concept, together with a graphical phasor diagram with the frequency-phase information, to systematically explain the LR-extension mechanism. Prototyped in a 65-nm CMOS, the divider occupies a tiny active area of 0.0018 mm 2 . The measured LR is 153% (4–30 GHz) while consuming 4.06–4.28 mW at 30 GHz under a single 1.2-V supply. The performance corresponds to two figure of merits: FOM $_{\mathbf {Pdc}}$ of 25.5 dB and FOM $_{P}$ of 71.5, both compare favorably with the state of the art.
Keyword	Frequency conversion Resonant frequency Latches Frequency measurement Clocks IP networks Inductors
URL	View the original
Language	英語English
The Source to Article	PB_Publication
PUB ID	48666
Document Type	Journal article
Collection	University of Macau
Corresponding Author	Chen, Y.
Recommended Citation GB/T 7714	Zhao, X.,Chen, Y.,Mak, P. I.,et al. A 0.0018-mm2 153%-Locking-Range CML-Based Divider-by-2 with Tunable Self-Resonant Frequency Using an Auxiliary Negative-gm Cell[J]. IEEE Transactions on Circuits and Systems I: Regular Papers, 2019, 3330-3339.
APA	Zhao, X.., Chen, Y.., Mak, P. I.., & Martins, R. P. (2019). A 0.0018-mm2 153%-Locking-Range CML-Based Divider-by-2 with Tunable Self-Resonant Frequency Using an Auxiliary Negative-gm Cell. IEEE Transactions on Circuits and Systems I: Regular Papers, 3330-3339.
MLA	Zhao, X.,et al."A 0.0018-mm2 153%-Locking-Range CML-Based Divider-by-2 with Tunable Self-Resonant Frequency Using an Auxiliary Negative-gm Cell".IEEE Transactions on Circuits and Systems I: Regular Papers (2019):3330-3339.

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