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双通道GNSS中频信号采集器的使用说明 支持GPS/BD2中频信号的采集

RFSW6124 管脚图The RFSW6124 is a GaAs pHEMT single-pole double-throw (SPDT) switch designed for use in cellular, 3G, LTE, and other high performance communications systems. It offers a high isolation symmetric topology with excellent linearity and power handling capability. The design is non-reflective such that RF ports 1 and 2 are terminated in the off-state. The enable pin allows for a terminated "all-off state". The RFSW6124 is 3V and 5V positive logic compatible.

基于锁相环的载波提取技术。采用科斯塔斯锁相环得到信号的载波