2024年6月4日发(作者：)

STB常用接口介绍

目 录

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3.S-Video ..................................................................................................................................................................................... 3

/YCbCr ........................................................................................................................................................................... 5

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/2 ....................................................................................................................................................................................... 12

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-232 .................................................................................................................................................................................. 14

45 ...................................................................................................................................................................................... 16

11 ...................................................................................................................................................................................... 17

（Radio Frequency）

➢ RF射频端子是最早在电视机上出现的，也是目前家庭有线电视采用的接口模式。

➢ 成像原理：

将视频信号(CVBS)和音频信号(Audio)相混合编码后，输出然后在显示设备内部进行

一系列分离/ 解码的过程输出成像。

➢ 传输信号：

模拟音视频信号

➢ 优点：

接口简单，成本低，传输距离远（＞100m）。

➢ 缺点：

由于步骤繁琐，且音视频混合编码会互相干扰，所以它的输出质量也是最差的。

(Composite Video Broadcast Signal)

➢ 复合视频信号，最简单、最原始的视频接口，也就是通常所称的RCA（标准视频输

入）接口。传输的是复合视频信号，传输介面是一根普通的视频线。黄色的为视频信号，

白色的为左声道音频信号，红色的为右声道音频信号。