HDMI vs mini HDMI
The basic difference between HDMI and Mini HDMI, as the names suggest, is the size; however, there are also other differences, which are addressed in this article. HDMI and mini HDMI are two port sizes that come under the HDMI standard. HDMI is the large sized slot used on devices such as监视器,,,,投影仪and图形卡while mini HDMI is the smaller version of HDMI that is found on small devices such as数码相机,,,,摄像头, 和DSLR。The number of pins is the same despite the difference in sizes, but the order of what pins are assigned have been changed. Other details such as voltages, speeds, bit rates, and protocols remain the same in both interfaces. It is important to note that there is a further smaller interface size known as micro HDMI used for devices like phones and it is NOT the same as mini HDMI.
什么是HDMI?
HDMI,代表高清多媒体接口,是用于传输多媒体的界面。它可以以数字格式传输音频和视频,其中视频流未压缩,并且可以压缩或未压缩音频流。在名称A类型A,类型B,类型C和类型D的名称下,有几种类型的HDMI端口。
一般语言,HDMI所指的是HDMI类型A。接口。这个端口的尺寸13.9毫米×4。45 mm. This port has a number of 19 pins. HDMI carries out differential transmission and, therefore, to transmit one data bit there should be a pair of wires. In HDMI, there are 3 data lines as Data 0, Data 1 and Data 2. Data 0+, Data 1+ and Data 2+ are connected to pin numbers 7, 4 and 1 respectively and Data 0-, Data 1- and Data 2- are connected to pins 9, 6 and 3 respectively. Pin 8, 5 and 2 are connected to the shield for Data 0, Data 1 and Data 2. Pin 10,11 and 12 are used for the clock and they are respectively used for Clock+, Clock shield and Clock-. Pin number 13 is used for CEC (Consumer Electronics Control), which is a feature used to send user commands to control HDMI devices. Pin 14 is reserved and will be used in future standards. Pins 15 and 16 are used for something called DDC (Display Data Channel) and pin 17 is a shield for the CEC and DDC channels. Pin 18 is the power supply, which is connected to +5v to allow a maximum of 50 milliamperes. Pin 19 is the Hot Plug Detect, which is responsible for detecting connection and disconnection of devices while turned on.
HDMI类型A端口通常在相对较大的设备(例如显示器和投影仪)上找到。HDMI A型A插槽也是计算机图形卡上的图形卡。
什么是迷你HDMI?
迷你HDMI指的是HDMI类型c接口。该连接器比HDMI类型A接口小得多。尺寸为10.42 mm×2.42 mm。但是,特殊的是它具有与19的相同数量的引脚。针的顺序与A型A中的销钉略有不同,正面信号引脚已与相应的盾牌交换。那就是销1、4和7已用销钉2,5和8交换。CEC和DDC通道的盾牌连接到引脚13而不是引脚17。CEC(消费者电子控制)连接到引脚14而不是引脚13.这里的保留引脚是销数字17。
速度,比特速率和协议与HDMI类型A完全相似。由于尺寸较小,该设备在相对较小的设备(例如数码相机,摄像机,DSLR)中使用,其中空间不足以容纳完整的HDMI端口。
具有迷你HDMI接口的设备可以与任何具有完整HDMI接口的设备连接,没有任何问题。例如,具有迷你HDMI输出的摄像机可以使用HDMI电缆连接使用HDMI输入的显示器,其一侧是Mini HDMI,另一侧是HDMI。
What is the difference between HDMI and Mini HDMI?
•HDMI是指A型和Mini HDMI的HDMI接受。
•HDMI的端口大小为13.9 mm×4.45毫米,而迷你HDMI的大小为10.42 mm×2.42毫米。因此,迷你HDMI的大小比HDMI小得多。
•HDMI中使用的正信号销为7、4和1,屏蔽的各个销钉为8、5和2。但是,在迷你HDMI中,这些都交换了。7、4和1用于盾牌,而8、5和2用于正数据。
•HDMI上的CEC和DDC的屏蔽层连接到引脚17。但是,在Mini HDMI上,这连接到引脚13。
• CEC (Consumer Electronics Control) is connected to pin 13 on HDMI while this is connected to 14 on mini HDMI.
•HDMI上的引脚14在Mini HDMI上保留,这是PIN 17被保留。
•HDMI用于显示器,投影仪和图形卡等较大设备,而Mini HDMI则用于相对较小的设备,例如数码相机,摄像头和DSLR。
概括:
Mini HDMI vs HDMI
The major difference between HDMI and Mini HDMI is in the sizes. HDMI is the larger version and mini HDMI is the smaller version. The number of pins is the same, but there are differences in what each pin is assigned to. Despite the size and the difference in pin assignment there are no other changes. Both are used for transmitting multimedia including video and audio. HDMI most precisely known as type A HDMI is found on large devices while mini HDMI known as type C is found on small devices that cannot accommodate the space for a type A HDMI.
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