带失真补偿变增益LNA的184mW全集成DVB-H调谐器芯片

2006 Symposium on VLSI Circuits, 2006. Digest of Technical Papers. Pub Date : 2006-06-15 DOI:10.1109/VLSIC.2006.1705301

H. Kawamura, T. Fujiwara, K. Kagoshima, S. Kawama, H. Kijima, M. Koutani, S. Toyoyama, K. Sakuno, K. Iizuka

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引用次数: 9

摘要

在0.5 μ m SiGe BiCMOS中实现了一种带失真补偿变增益LNA的单片直接转换DVB-H调谐器。LNA在860MHz时具有0dBm IIP3和2.8dB NF。引入了一种新的偏移抵消反馈，使截止频率与基带增益无关。该IC在2.8V电压下功耗184mW，而QPSK, CR=1/2信号的灵敏度为-96dBm

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A 184mW Fully Integrated DVB-H Tuner Chip with Distortion Compensated Variable Gain LNA

A single chip direct conversion DVB-H tuner with a distortion compensated variable gain LNA is implemented in 0.5mum SiGe BiCMOS. The LNA exhibits 0dBm IIP3 and 2.8dB NF at 860MHz. A new offset cancel feedback is introduced that keeps the cutoff frequency independent of the baseband gain. The IC consumes 184mW at 2.8V while achieving a sensitivity of -96dBm for QPSK, CR=1/2 signal

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2006 Symposium on VLSI Circuits, 2006. Digest of Technical Papers.

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