Application Report

 

SLLA032

 

 

 

Figures

 

Figure 1.

GBIC Setup Modifications

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Figure 2.

Bit Error-Rate Ratio Test Configuration

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Figure 3.

Eye Diagrams of High-Speed Serial Outputs

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Figure 4. TNETE2201 EVM Board Schematic

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Figure 5. TNETE2201 EVM Board Top Layer

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Figure 6. TNETE2201 EVM Board GND Layer

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Figure 7. TNETE2201 EVM Board VCC Layer

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Figure 8. TNETE2201 EVM Board Bottom Layer

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Tables

 

Table 1.

Default Setup as Shipped

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Table 2. TNETE2201 EVM Board Bill of Materials

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Introduction

The TNETE2201 EVM kit can act as a daughter board that plugs into new or existing designs. By providing the appropriate cabling, the EVM kit can interface with just about any test equipment or other reference designs. The EVM kit's high-speed serial interface can use either the GBIC (Gigabit Interface Converter) standard interface or a 50-ohm SMA connection. In addition, the GBIC specification allows the designer to choose either a 75-ohm copper module or a selection of fiber-optics modules.

As the frequency of operation increases, the board designer must take special care to ensure that the highest signal integrity is maintained. To achieve this, the board’s impedance is controlled for both 50-ohm and 75-ohm high-speed transmission lines. In addition, the 50-ohm impedance mismatches are reduced by designing the component pad size to be as close as possible to the width of the connecting transmission line. Vias are minimized and, when necessary, placed as close as possible to the device drivers. Overall, the board layout is designed and optimized to support high-speed operation. Thus, understanding impedance control and transmission line effects are crucial when designing high-speed boards.

Some of the advanced features offered by the EVM kit include:

PCB (printed circuit board) designed for speeds in excess of 1.25 Gbps

Flexible—The EVM can be configured to operate with multiple device types and with copper or fiber interfaces.

Integrated GBIC Interface eliminates the need for two boards.

All input/output signals are accessible for rapid prototyping.

Clock input is selectable for either 8/14 pin crystal or external clock input.

HPower can be supplied either by banana jacks or a 20-pin connector. Series terminated parallel outputs

TNETE2201 EVM Kit Setup and Usage

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Texas Instruments TNETE2201 manual Introduction, Figures
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TNETE2201 specifications

Texas Instruments TNETE2201 is a highly integrated, versatile chip designed for embedded networking applications. Operating in the realm of Ethernet connectivity, this device serves as a robust solution for various communication needs, especially within industrial and automotive sectors. Its key features and innovative technologies position it as a reliable choice for manufacturers looking to enhance their products' networking capabilities.

One of the standout attributes of the TNETE2201 is its support for multiple Ethernet protocols, enabling seamless integration into a variety of communication systems. The device is compliant with IEEE 802.3 standards, ensuring compatibility and reliability across different networking platforms. This compliance allows for easy integration into existing infrastructures while maintaining high-speed communication standards.

The TNETE2201 is equipped with an integrated Media Access Controller (MAC) that simplifies the design process by reducing the need for external components. This feature results in a more compact and efficient design, reducing overall system costs and enhancing performance. The MAC interface supports various data rates, including 10/100 Mbps operation, making it suitable for both legacy and modern networking applications.

Another significant characteristic of the TNETE2201 is its low power consumption, which is crucial for portable and battery-operated devices. The chip operates in power-saving modes, ensuring operational efficiency without compromising performance. This attribute is particularly valuable in applications where energy efficiency is critical, such as remote sensors and IoT devices.

Additionally, the TNETE2201 supports advanced packet processing capabilities, including the ability to handle multiple data streams, which is essential for applications requiring real-time data transmission. Its built-in features for Quality of Service (QoS) allow for prioritization of critical data, thus facilitating better management of network traffic.

The device also integrates various safety and security measures, essential for today’s interconnected environments. With features designed to prevent unauthorized access and secure data transmission, the TNETE2201 aligns with industry standards for cybersecurity, making it a dependable component for any secure networking application.

Overall, Texas Instruments’ TNETE2201 stands out due to its blend of high performance, low power consumption, and extensive compatibility across various platforms. Its advanced integration capabilities and robust networking features make it an invaluable asset for designers aiming to develop innovative and reliable networking solutions in today's rapidly evolving technological landscape. Whether for industrial automation, automotive networking, or IoT applications, the TNETE2201 positions itself as a top choice for manufacturers looking to leverage Ethernet technology.
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