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我需要将-2~2dBm的50欧姆的100MHz信号，给4个锁相环（例如LMX2820）作为输出参考。计划使用LMK1C1104，它是否支持-2dbm的输入信号呢，
您好
LMK1C1104的最小摆幅要求为0.4x VDD。 因此 VIH 和 VIL 取决于电源轨是什么。 -2dBm 对应于~0.5Vpp、在最低 VDD (0.4 x 1.8 = 0.720Vpp)下、仍不能满足最小摆幅要求。
