主要讨论了现代高频数字化接收机前端电路的设计，并提出了具体的实施方案。
Design of front end circuit in modern high frequency digital receiver is mainly discussed in this paper, and the detailed implement scheme is also proposed.
系统运用CMOS数字图像传感器取代模拟CCD摄像机，采用带有usb总线的PIC18 F 4550单片机来控制和传输数据，实现了视觉检测前端数据采集与传输的数字化、智能化。
CMOS digital image sensor and PIC18F4550 micro-controller with USB bus are applied to this sys - tem instead of the analog CCD camera to realize the digital acquisition and intelligent transmission.
该X98014 3通道，8位模拟前端（AFE）的包含所有必需的组件进行数字化，从个人电脑，工作站和视频机顶盒的模拟RGB或YUV图像信号。
The X98014 3-channel, 8-bit Analog Front End (AFE) contains all the components necessary to digitize analog RGB or YUV graphics signals from personal computers, workstations and video set-top boxes.
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