HDMI 19+1 refers to a 20-core HDMI 2.0 version cable, corresponding to a 19+1 pin HDMI interface. The more commonly used version is the 14+1 standard HDMI 1.4 version, which consists of 15 cores and can also be compatible with the 19+1 pin HDMI interface.
HDMI 1.4 is an earlier version than 2.0. Its transmission bandwidth is 10.2Gbps, which can reach a 24Hz screen refresh rate, but it cannot support 4K screen transmission. When transmitting 4K signals, the video will not be smooth, and the video will be stuck, blurred or black. In terms of color saturation, the 1.4 version of the HDMI cable only supports 8-bit color depth.
Depending on the connected device, HDMI can be divided into HDMI Type-A, Type-C, and Type-D. All three have 19-pin versions, but the pin definitions of the three 19+1 HDMI cables are different.
has a total of 19 pins, with a size of 4.45 mm × 13.9 mm, and is the most common HDMI connector specification;
, commonly known as mini-HDMI, is used in HDMI 1.3 version, with a total of 19 pins, which can be said to be a smaller version of HDMI Type A, with a size of 2.42 mm × 10.42 mm, but the pin definition has changed;
is used in HDMI 1.4 version, with a total of 19 pins, with a size of 2.8mm × 6.4mm, but the pin definition has changed. The new Micro HDMI interface will be about 50% smaller than the current 19-pin MINI HDMI interface, and can bring support for the highest resolution of 1080p and the fastest 5GB transmission speed to portable devices such as cameras and mobile phones
What is the use of each pin in the 19+1 HDMI cable?
is to send audio, video and various auxiliary data information. Two groups form a pair, with a total of 3 TMDS channels;
+5V Power is a positive 5V power supply;
