用于电视应用的高线性宽带可变增益LNA

2007 IEEE Custom Integrated Circuits Conference Pub Date : 2007-09-01 DOI:10.1109/CICC.2007.4405787

D. Manstretta, Leonard Dauphinee

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引用次数: 11

摘要

一种用于电视调谐器的三输出宽带变增益低噪声放大器以0.18 μ SiGe技术进行了演示。增益从27 dB到-28 dB连续变化，在1GHz带宽下具有优于1db的精度。在27 dB增益时，放大器显示6.5 dB NF, 82 dBmV OIP3和121 dBmV OIP2。OIP3高于73 dBmV至-21 dB增益。启用所有三个输出后，电路从3.3V电源汲取170 mA。

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A Highly Linear Broadband Variable Gain LNA for TV Applications

A broadband variable-gain low noise amplifier with triple output for TV tuners has been demonstrated in a 0.18 mum SiGe technology. The gain varies continuously from 27 dB to -28 dB and has better than 1 dB precision over a 1GHz bandwidth. At 27 dB gain the amplifier shows 6.5 dB NF, 82 dBmV OIP3 and 121 dBmV OIP2. OIP3 is above 73 dBmV down to -21 dB gain. With all three outputs enabled the circuit draws 170 mA from a 3.3V supply.

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2007 IEEE Custom Integrated Circuits Conference

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