Type C interface display PD protocol chip scheme LDR6020

Mondo Digital Updated on 2024-01-30

Everyone knows that there are many types of displays, including desktop monitors, portable monitors, smart monitors, and even AR glasses can be regarded as a micromonitor, and there are many ways to transmit signals, such as HDMI, VGA, DisplayPort, USB-C, etc. Now the more unified update is the European Union's type-c interface scheme, the unification of the interface is necessary for environmental protection, so that everyone does not need a bunch of adapters, as long as the Type-C interface can meet the use of electronic products in daily life.

The display adopts a Type-C interface, which can be easily connected to mobile phones, tablets, laptops, and Switch game consoles for screen projection, because like mobile phones, tablets, and Switch game consoles, it is impossible to install an HDMI interface on a small body, and the Type-C interface can provide fast charging for mobile phones, tablets, laptops, and Switch game consoles while projecting the screen, so that the screen projection will not consume power all the time and the battery life is not enough.

In addition, there are other benefits to the use of a Type-C interface for the display. First of all, the Type-C interface supports bidirectional transmission, that is, it can transmit both data and electricity. This means that we can connect multiple devices at the same time through a Type-C interface, and all of these devices can get power through this interface. This not only reduces the number of cables, but also makes charging the device more convenient. Secondly, the Type-C interface also has a higher data transfer rate. Compared with the traditional USB interface, the Type-C interface has a faster data transfer rate, which can meet the needs of more demanding devices. This means that we can quickly transfer data through the Type-C interface, which improves work efficiency. Finally, the Type-C interface also has better compatibility. Since the Type-C interface is a universal interface standard, it can be compatible with a wide range of devices, whether it is a mobile phone, tablet, or laptop, etc. This makes it more convenient for us to use the device without worrying about interface incompatibility. In conclusion, it is a trend for displays to adopt Type-C interfaces, and it can bring a lot of benefits. It can not only reduce the number of cables and facilitate the charging of devices, but also improve the data transfer rate and work efficiency, while having better compatibility. Therefore, we can foresee that more and more displays will adopt Type-C interface solutions in the future.

So let's take a look at the PD chip scheme of LDR6020's display Type-C interface:

If you want to let the smart device output the DP signal, you need LDR6020 to perform ALT mode with the device, and negotiate with the device through CDM to let the device output the DP** signal through CC.

Let's take a look at the LDR6020 profile:

LDR6020 is very powerful, in addition to supporting PD protocol functions, you can also customize MCU control logic, support repeated burning, network upgrade, even in the user's hands can be updated, and the cost is cheap, very suitable for the application scenario of Type-C display.

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