HDMI接口定义图-电子工程世界

分享到: 微博; QQ; 微信; LinkedIn

The HDMI Plug

As illustrated in Figure below, an HDMI connector contains 19 pins, which include:

TMDS data channels (6 pins): these carry the digital data representing audio and video. Video data are always sent in an uncompressed format and includes horizontal and vertical blanking intervals. Audio data, which can consist of any compressed,non-compressed, PCM, single or

multi-channel formats (including the new DTS-HD Master Audio and Dolby TrueHD formats for blue laser DVDs), fit into the video blanking intervals and are sent as HDMI packets.

TMDS clock channel (2 pins): this is a reference clock signal that enables the receiving device to robustly recover the data stream.

Consumer Electronics Control (CEC) (1 pin): this is an optional feature in HDMI devices. It is a dedicated control bus that enables devices to automatically control other attached devices. See detailed description of CEC below.

Display Data Channel (DDC) (1 pin): this is an I2C bus that is used for devices to convey their capability information to other devices, and is also used for HDCP authentication and encryption.

+5V power (1 pin): supplies low current, +5V DC power for the purpose of reading the EDID ROM contained in the display.

Hot Plug Detect (1 pin): a signal intended to convey to the source that a "hot plug" event has occurred (such as a cable that has been unplugged), which typically results in the source re-initializing the HDMI link.

TMDS Shield Lines (4 pins designated in yellow): Each of the four TMDS channels is carried in the cable with a shielded twisted pair of wires. The shields, used to minimize cross-talk and EMI emissions, are attached to ground at both ends of the cable.

CEC/DDC Ground (1 pin): Used for the current return for all non-TMDS signals.

关键字：HDMI接口定义图引用地址：HDMI接口定义图

上一篇：MoCA新增来自亚洲和非洲的成员公司
下一篇：九大视频接口

推荐阅读最新更新时间：2024-05-03 00:07

带HDMI接口索尼Xperia Pro手机发售：定价1万6

索尼在去年 2 月首次发布了 Xperia Pro，但这款手机一直没有上市。索尼今天已正式在美国推出 Xperia Pro。这款手机是索尼在美国市场推出的首款 5G 手机，定价高达 2499.99 美元（约 16168 元）。高昂的价格意味着这款手机并不适合所有人，索尼的目标用户是专业人士，他们可以通过配置手机的 HDMI 接口，将设备变成外部摄像头的监视器。此外，5G 连接可以用于快速上传或直播视频。除了 HDMI 输入和美国的 5G 支持外，Xperia Pro 的硬件与 Xperia 1 II 没有什么不同。Xperia 1 II 在美国发布时只支持 4G，而在欧洲发布时支持 5G。规格方面，Xperia

[手机便携]

HDMI接口在嵌入式视频监控系统中的应用

引言　　传统的模拟视频接口有复合视频信号(CVBS、A/V)，S端子（Y/C、S-Video），模拟分量视频信号(Y、U、V或Y、R-Y、B-Y)和通用 D-SUB( 9芯)端口等。随着人们对图像显示质量要求的不断提升，在视频监控方面用模拟接口来传输和显示监控的视频已经不能满足人们的要求。以高清数字电视为代表的数字视频设备的应用越来越普遍，模拟视频接口标准更加无法适应在带宽、内容保护、音频支持等方面的发展需求，这就使得数字视频接口标准更能适应市场的需求。HDMI（High－Definition Multimedia Interface）是数字视频接口中的一种接口标准，由于其具有单一线缆上能同时传输音视频、带宽高和 HDCP

[嵌入式]

热门资源推荐
热门放大器推荐

小广播

热门活动

换一批

■2024 瑞萨电子MCU/MPU工业技术研讨会——深圳、上海站，火热报名中

■罗姆有奖直播 | 重点解析双极型晶体管的实用选型方法和使用方法

■STM32N6终于要发布了，ST首款带有NPU的MCU到底怎么样，欢迎小伙们来STM32全球线上峰会寻找答案！

■免费下载 | 安森美电动汽车充电白皮书，看碳化硅如何缓解“里程焦虑”！