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在VCD视盘机系统中,伺服及信号处理系统完成除MPEG1解码以外其它所有信号的处理。在新科“超越1号”优等品VCD技术方案中,它主要由射频(RF)放大器、数字伺服系统和数字信号处理器三大部分组成。 一.射频放大器CXA2549M的技术特点 射频放大器是信号处理过程中一个很重要的环节,它接受来自激光头的微弱电信号,对其放大、整形、均衡、运算,分离出射频RF信号、循迹伺服误差信号TE、聚焦
In the VCD player system, servo and signal processing system to complete all except MPEG1 decoding signal processing. In the new section “beyond No. 1” superior VCD technology solutions, which mainly by radio frequency (RF) amplifiers, digital servo systems and digital signal processor composed of three parts. I. RF amplifier CXA2549M technical characteristics RF amplifier is a signal processing process is a very important part of it receives from the laser head of weak electrical signals, its amplification, shaping, equalization, computing, separation of the RF signal RF tracking servo tracking Error signal TE, focus