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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1058266/am26c31-5v-line-receiver-driven-by-3-3v-line-driver
能否使用3.3V 线路驱动器 AM26LV31来驱动5V 线路接收器 AM26C32Q？
是；差分信号电平不受收发器电源电压的阻抗。
谢谢 Clemens！
您好、Yee、
只要线路接收器满足接收器阈值、线路驱动器可能具有较低的电源电压、并且仍然允许信号正确传播。
如果您有任何疑问、请告知我们。
此致、 Eric Schott
