2024年3月10日发(作者：斛嫚儿)
STB常用接口介绍
目 录
.............................................................................................................................................................................................. 1
........................................................................................................................................................................................ 2
3.S-Video ..................................................................................................................................................................................... 3
/YCbCr ........................................................................................................................................................................... 5
.......................................................................................................................................................................................... 6
........................................................................................................................................................................................... 7
........................................................................................................................................................................................ 9
.................................................................................................................................................................................... 10
...................................................................................................................................................................................... 11
/2 ....................................................................................................................................................................................... 12
....................................................................................................................................................................................... 13
-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。
2024年3月10日发(作者：斛嫚儿)
STB常用接口介绍
目 录
.............................................................................................................................................................................................. 1
........................................................................................................................................................................................ 2
3.S-Video ..................................................................................................................................................................................... 3
/YCbCr ........................................................................................................................................................................... 5
.......................................................................................................................................................................................... 6
........................................................................................................................................................................................... 7
........................................................................................................................................................................................ 9
.................................................................................................................................................................................... 10
...................................................................................................................................................................................... 11
/2 ....................................................................................................................................................................................... 12
....................................................................................................................................................................................... 13
-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。