The driving component includes: a N-bit serial buffer, a K-bit extension buffer, a N-bit video data buffer and N driving current output ports.
该驱动元件包括：一N个位的串序缓冲器，一K个位的延伸缓存器，一N个位的影像资料缓存器，N个驱动电流输出端口。
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。
The second selected element selects one of the second groups of voltage references as an output analog voltage according to N-M least significant bits of the N-bit digital signal.
第 二选择单元依据N位数字信号的N-M个最低位，选择第二组参考电压之一作 为输出模拟电压。
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