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美国国家半导体公司(National Semiconductor Corp.)推出一组RF功率检波器。该公司的LMV225、LMV226和LMV228型对数放大RF功率检波器为多波段频率,频率范围450 MHz-2 GHz,其工作电源为2.7-5.5 V单电源。 LMV225的RF功率检波范围为-30 dBm-0 dBm,适宜直接和电阻分接头组合使用。这种LMV225功率检波器可优先与30-35 dB的定向耦合器一块使用。LMV226和LMV228的检波范围为-15 dBm-15 dBm,适宜和一个20 dB的定向耦合器组合使用。上述LMV225和LMV228旨在用于CDMA和 WCDMA,而LMV226配置有缓冲输出,这就使得它适用于GSM、EDGE、
National Semiconductor Corp. introduced a set of RF power detectors. The company’s LMV225, LMV226 and LMV228 logarithmic amplifier RF power detector multi-band frequency range of 450 MHz-2 GHz, the power supply for the 2.7-5.5 V single-supply. The RF power detection range of the LMV225 is -30 dBm-0 dBm, suitable for direct and resistive tap combinations. This LMV225 power detector preferentially operates with a 30-35 dB directional coupler. The detection range of the LMV226 and LMV228 is -15 dBm-15 dBm and is suitable for use with a 20 dB directional coupler. The LMV225 and LMV228 are intended for both CDMA and WCDMA, and the LMV226 is configured with buffered outputs, making it suitable for GSM, EDGE,