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ADL5380

Question asked by FreedomSabre on Jul 13, 2015
Latest reply on Jul 13, 2015 by rbrennan

ADL5380的差分阻抗写的50ohm,手册中写的负载200ohm和450ohm跟这个有什么关系,我输出为50ohm,是不是直接通过一个1:1巴伦就可以了。参考图中用9:1巴伦转的,ADL5380基带差分阻抗为50ohm,那经过巴伦变换之后岂不是变成(50/9)ohm了,因为巴伦次级接的ADL5380基带,主级接的后面负载,次级跟主级阻抗比为9:1。

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