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一、同步信号发生器图1为松下MC-20摄录机同步脉冲发生器工作方框图。它包括IC 310视频信号编码器、IC312时钟脉冲发生器、IC701数字化自动控制信息处理电路、IC201CCD同步信号发生器。IC311同步脉冲发生器主要由分频器和脉冲检测电路构成。F_(ck)是同步脉冲发生器的时种信号,来源于CCD驱动脉冲发生器内的时钟振荡电路取值606f_H。F_(ck)经多路分频后,产生行频、半行频以及帧频脉冲,加到行检测和垂直检测电路。在时序和脉宽上处理后,形成行推动脉冲HD、宽行推动脉冲WHD、箝位脉冲CP、垂直推动脉冲VD。复合检测电路对行、垂直检测电路的部分输出进行逻辑加工处理,分三路供出基准脉冲。该三路脉冲分别是复合消隐脉冲C.BLK、色同步选通脉冲BFP和复
First, the synchronous signal generator Figure 1 for the Panasonic MC-20 cam synchronous pulse generator work block diagram. It includes IC 310 video signal encoder, IC312 clock pulse generator, IC701 digital automatic control information processing circuit, IC201CCD synchronous signal generator. IC311 synchronization pulse generator mainly by the frequency divider and pulse detection circuit. F_ (ck) is the kind of synchronous pulse generator signal, derived from the CCD drive pulse generator clock oscillation circuit value 606f_H. F_ (ck) after demultiplexing, resulting in line frequency, half-line frequency and frame rate pulse, added to the line detection and vertical detection circuit. After timing and pulse width processing, a row push pulse HD, a wide row push pulse WHD, a clamp pulse CP, and a vertical push pulse VD are formed. Composite detection circuit of the line, vertical detection circuit part of the output logic processing, divided by three for the reference pulse. The three pulses are composite blanking pulse C.BLK, color burst strobe BFP and complex