Smart biasing keeps RF power amplifier on track

被引：0
|
作者：
Bindra, Ashok
机构：
来源：
Electronic Design | 2002年 / 50卷 / 02期
关键词：
Bias voltage - Light amplifiers - MOS devices - Power amplifiers - Radio frequency amplifiers;
D O I：
暂无
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学科分类号：
摘要：
Xicor Inc. developed a monolithic smart bias controller that regulates and controls the output power of the LDMOS Radio Frequency (RF) power amplifier and improves its performance. The controller integrates all necessary analog and mixed-signal functions on a single CMOS chip to automatically control the gate bias voltage of an LDMOS power amplifier. It also offers an integrated closed-loop solution that permits dynamic calibration of the LDMOS' gate bias voltage during manufacturing and real-time modes in the basestation The X9470 calibrates and dynamically sets the optimum bias voltage operating point of the external RF amplifiers.
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页码：38 / 40
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