FMS6404 是一个单复合视频 5 阶 Butterworth 低通视频滤波器，针对最低击穿和扁平群延迟而优化。该器件包含一个音频陷波器，消除了后续射频音频载波的光谱位置中的视频信息。群延迟补偿电路会对信号进行预失真，以补偿内在接收器中间频率 (IF) ；滤波器的群延迟失真。在典型应用中，来自 DAC 的符合视频交流耦合到滤波器中。CV 输入具有直流还原电路，可在视频同步期间对直流输入电平进行箝位。箝位脉冲派生自 CV 沟道。所有输出均能将交流耦合或直流耦合的 2VPP 驱动至单视频负载或双视频负载中。一个视频负载由一个联接至端接 75 Ω 线路的串联 75 Ω 阻抗匹配电阻组成。这会对零件产生总共 150 Ω 的负载。双负载为两个负载的并联形式，对该零件产生总共 75 Ω 的负载对于 1 VPP 输入电平，该 CV 信号的增益为 6dB。所有视频沟道在同步期间均进行箝位，以建立合适的输出电压参考电平。
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