Digital input and output levels are TTL.

数字输入和输出水平的TTL。

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The digital input provides the load required for the circuit to work.

数字输入为此电路提供负载。

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Figure 1 shows a sinking digital output that is connected to a sourcing digital input.

图1所示为一个Sinking数字输出连接了一个Sourcing数字输入。

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The advantage of digital input is that the signal sent by the PC doesn't have to be converted to analog, so signal loss is virtually eliminated, Fender said.

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Continuous digital input stimulation could be depriving the brain of precious downtime in which memories of experiences can be more permanently stored, according to a New York Times article that reported on a new University of California, San Francisco, study.

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