how to make a usb 2.0 to ethernet adapter

Using auto-MDIX style magnetic module becomes necessary while using the LAN9500Ai chip in the auto-MDIX mode of operation. USB 2.0 to 10/100 Ethernet Converter Block DiagramĪlthough the design looks simple, there are several key aspects that need careful attention while planning the design and layout on the PCB.Ī) For achieving best performance, the center tap connections on the transmit channel and receive channel must be connected to receive and transmit channel of the magnetic module accordingly. The block diagram illustrates architecture of the USB to 10/100 RJ45 Ethernet converter. The 3.3V supply required to power the board comes from either the USB or the Ethernet port. 8x8mm, 57-pin QFN package (well-suited for compact designs).

±5kV HBM and ☑5kV air discharge ESD protection.Single-chip, high-speed USB 2.0 to 10/100 Ethernet converter.Auto-polarity and auto-negotiation detection.

This card supports many important features, as mentioned below. This bi-directional Ethernet and USB connectivity card carries an industrial-grade USB 2.0 port and is therefore capable to withstand a wide operating temperature range (-40 to +85 degree celsius). An industrial USB port is by design different from the normal USB ports of computers.Īscenten has developed a single card with a universal approach, that can convert either a USB 2.0 to 10/100 Mbps Ethernet or a 10/100 Mbps Ethernet to USB 2.0. However, a converter that can work on an industrial USB 2.0 port and function in the temperature range of -40 to +85 degree celsius is not easily available in the market. In other words, these are more like one-way conversion units and generally suitable to use with laptops or general computers only. The market today is inundated with various converters and one can find a multitude of USB to Ethernet converters – those that work in the temperature range of -25 to +50 degree Celsius and can convert USB 2.0 to Ethernet and vice versa.

How to make a usb 2.0 to ethernet adapter