这种结构由四部分构成：输入延迟单元、寄存器单元、滤波器单元和控制单元。
It comprises of four basic unit: input delay, filter, register bank, and control unit.
利用一个片内控制寄存器，用户可以设置不同的工作条件，包括模拟输入范围和配置、输出编码、功耗管理及通道序列化。
An on-chip control register allows the user to set up different operating conditions, including analog input range and configuration, output coding, power management, and channel sequencing.
利用AD 7811和AD 7812的控制寄存器，可以将输入通道配置为单端或伪差分输入。
The control registers of the AD7811 and AD7812 allow the input channels to be configured as single-ended or pseudo differential.
每来一个时钟脉冲，N位加法器将频率控制数据m与相位寄存器输出的累加相位数据相加，并将结果送相位寄存器输入端。
Frequency controlled data (m) plus an accumulative phase data output by a phase register in an N-bit adder when a clock pulse comes, the result is sent to the input port of the phase register.
每来一个时钟脉冲，N位加法器将频率控制数据m与相位寄存器输出的累加相位数据相加，并将结果送相位寄存器输入端。
Frequency controlled data (m) plus an accumulative phase data output by a phase register in an N-bit adder when a clock pulse comes, the result is sent to the input port of the phase register.
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