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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-[Formula Omitted] Cell

Zhao, Xiaoteng ; Chen, Yong ; Mak, Pui-In ; Martins, Rui P

IEEE transactions on circuits and systems. I, Regular papers, 2019-01, Vol.66 (9), p.3330 [Periódico revisado por pares]

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Título:
A 0.0018-mm2 153% Locking-Range CML-Based Divider-by-2 With Tunable Self-Resonant Frequency Using an Auxiliary Negative-[Formula Omitted] Cell
Autor: Zhao, Xiaoteng ; Chen, Yong ; Mak, Pui-In ; Martins, Rui P
Assuntos: CMOS ; Locking ; Resonant frequencies
É parte de: IEEE transactions on circuits and systems. I, Regular papers, 2019-01, Vol.66 (9), p.3330
Descrição: 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-[Formula Omitted] (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 mm2. 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[Formula Omitted] of 25.5 dB and FOM[Formula Omitted] of 71.5, both compare favorably with the state of the art.
Editor: New York: The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Idioma: Inglês

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