Micro-USB: Scope and Prospects

Now we can talk about the official birthmicro usb His appearance on the mobile device market was not difficult to predict. Due to the miniaturization, the old contact types of communication are gradually being replaced by more compact ones. The transition to the new serial I / O port has already been supported by the largest companies around the globe. But why do mobile device manufacturers continue to use seemingly outdated forms of information exchange? After all, there are already contactless ways to transfer data, for example, IrDA or Blue Tooth.

Для ответа на эти вопросы необходимо рассмотреть, how the micro usb connector works It consists of 5-pin. Two of which are wires for the exchange of information. Next comes power, and a protective screen. Compared to its predecessor, it has become much smaller, but the principle of its work remains the same.

This port is powered byconstant voltage (+ 5V), and its presence in the line reduces potential interference with the transmission of information. The same function is performed by a protective screen. Moreover, the availability of power allows you to use a micro-USB connector for chargers.

This is where the main advantages of micro USB are.in front of wireless communication devices. This is primarily a high noise immunity, and the ability to use this port as a source of constant voltage to recharge the battery.

Serial I / O Port Operationcontrolled by a special controller. A good prospect in increasing the speed of data exchange is the increase in the clock frequency of the device. That is, connector miniaturization is not the last step in the development of this type of communication.

Compared to wireless devices,It is necessary to note the fact that the work of the IrDA communication is very sensitive even to direct sunlight or a device operating alongside with a similar principle of operation. Even the included video camera or TV remote can interfere with its normal operation.

BlueTooth wins in distance when transmittingdata (several tens of meters) and better protected from interference than its predecessor (IrDA), due to the higher operating frequency. But it still loses to the wired connection in noise immunity and data transfer rates.

To connect a mobile device with a personal computer, you can use a micro USB adapter, as a rule, you can always buy them in

specialized stores.Or it comes with the device. It is necessary to take into account only the moment that structurally new connectors are available in versions Micro-A and Micro-B. That is, before purchasing, you need to check compatibility.

As a rule, the micro-USB cable has a small length, it is associated with such a parameter as noise immunity. During operation, it is necessary to locate it away from network wires or other sources.

Apparently, the new connector has goodprospects and for a long time "take root" in the market of mobile devices. It has good operational characteristics, and in some respects overtakes alternative types of communication.