The serial interface operates in internal clocking (master) mode, the AD7721 providing the serial clock.
串行接口在内部时钟(主)模式下工作，AD 7721提供所需的串行时钟。
The clocking circuit configured to provide the pull-up current to an internal node in response to a clock signal having the input supply voltage and the ground voltage.
时钟电路被配置为响应于具有输入供电电压和接地电压的 时钟信号向内部节点提供上拉电流。
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