以前的故事
RFMW提供带片上VCO的双PLL
RFMW,Ltd。宣布对CML微电路的设计和销售支持CMX979.低功耗,双RF / IF合成器IC。这CMX979.具有集成VCO的RF Fractional-N合成器部分仅需36-45mA,以产生2.7至3.6GHz输出LO信号。合成器的可配置1/2/4/6/8分频器可以将其输出移至338MHz。With only 9mA additional current the device’s low power integer-N IF synthesizer, with integrated VCO and loop filter, can produce an output signal in the 500 to 1000MHz range and its 1/4/8/16 configurable output divider can shift that to as low as 31MHz. Targeted towards low power / low cost RF solutions theCMX979.结合RF和IF LO合成器在小型占地面积中,以支持超级外差和单个转换无线电架构。集成RF的片上校准以及VCOS确保跨温度和电源电压变化的性能。这CMX979.需要很少的外部组件,可用于小型6x6mm VQFN封装。
