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凌力尔特公司(Linear Technology Corporation)推出一款有源双平衡上变频混频器LTC5576,该器件具有很宽的RF频率范围,从3GHz直到8GHz。LTC5576凭借卓越的25dBm OIP3线性度和在8GHz时仅为2dB的出色转换损耗提高了微波发送器及上变频性能,与其他无源混频器相比,LTC5576可提供卓越的输出信号质量,无源混频器一般的损耗为8dB。此外,LO输入端集成的缓冲器仅需要0dBm驱动电平,因此实际上不再需要外部放大器电路。LTC5576集成了独特的RF平衡-不平衡变压器设计,以扩大输出频率带宽,同时在3GHz至8GHz范围内实现单端工作。其IF输入还具备很大的带宽,而且
Linear Technology Corporation introduces the LTC5576, an active dual-balanced upconversion mixer that features a wide RF frequency range from 3 GHz up to 8 GHz. The LTC5576 improves microwave transmitter and upconversion performance with superior 25dBm OIP3 linearity and excellent 2dB conversion loss at 8GHz. The LTC5576 offers superior output signal quality compared to other passive mixers. The passive The mixer’s typical loss is 8dB. In addition, the buffer integrated into the LO input requires only a 0dBm drive level, so an external amplifier circuit is virtually eliminated. The LTC5576 integrates a unique RF balance-balun design to expand the output frequency bandwidth while enabling single-ended operation from 3GHz to 8GHz. Its IF input also has a large bandwidth, but also