5.5 GHz分频合成器集成电路

GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 19th Annual Technical Digest 1997 Pub Date : 1997-10-12 DOI:10.1109/GAAS.1997.628280

C. Diorio, T. Humes, H. Notthoff, G. Chao, A. Lai, J. Hyde, M. Kintis, A. Oki

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引用次数: 0

摘要

我们报道了一种GaAs-AlGaAs分数频率合成器IC，具有5.5 GHz反馈分频器、2 GHz参考分频器、500 MHz相频检测器、1 ns电荷泵脉冲、增益归一化输出电流和18 pA/sub rms///spl径向/Hz带内相位噪声。反馈分频器允许从12到16383连续可选的分频比，并支持双模脉冲吞咽分数合成与单比特控制。参考分频器允许从1到4095连续可选的分频比;一个可选的除4 / 5输入预量器将除比扩展到20475。芯片从+ 5v和-5.2 V电源消耗1w。

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A 5.5 GHz fractional frequency-synthesizer IC

We report a GaAs-AlGaAs fractional frequency-synthesizer IC with a 5.5 GHz feedback divider, 2 GHz reference divider, 500 MHz phase-frequency detector, 1 ns charge-pump pulses, gain-normalized output current, and 18 pA/sub rms///spl radic/Hz in-band phase noise. The feedback divider allows continuously selectable divide ratios from 12 to 16383, and supports dual-modulus pulse-swallowing fractional synthesis with single-bit control. The reference divider allows continuously selectable divide ratios from 1 to 4095; an optional divide-by-four/five input prescaler extends the divide ratios to 20475. The chip consumes 1 W from +5 V and -5.2 V supplies.

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GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 19th Annual Technical Digest 1997

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