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本文介绍了一种CMOS全片集成的功率放大器,满足802.15.4规范,并采用采用了中和电容技术。采用了一种新型的采用了数字接口的结构,可以使基带信号直接控制PA的输出功率,从而无需DAC。采用中和电容技术以提高反向隔离度。该芯片采用SMIC 0.18um工艺流片。 测试结果表明,在1dB压缩点处,本文所提出的功率放大器具有13.5dB的功率增益,最大3.48dBm的输出功率和35.1%的PAE。核心面积为0.73mm*0.55mm。 相似文献
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正This paper presents a single chip CMOS power amplifier with neutralization capacitors for Zigbee~(TM) system according to IEEE 802.15.4.A novel structure with digital interface is adopted,which allows the output power of a PA to be controlled by baseband signal directly,so there is no need for DAC.The neutralization capacitors will increase reverse isolation.The chip is implemented in SMIC 0.18μm CMOS technology.Measurement shows that the proposed power amplifier has a 13.5 dB power gain,3.48 dBm output power and 35.1%PAE at P_(1dB) point. The core area is 0.73×0.55 mm~2. 相似文献
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