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Name: DP83867ERGZ-R-EVM
Brand: Texas Instruments
SKU: DP83867ERGZ-R-EVM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments DP83867ERGZ-R-EVM

Part No.:: DP83867ERGZ-R-EVM

Manufacturer:: Texas Instruments

Package:

Datasheet:: DP83867ERGZ-R-EVM.pdf

Description:: EVAL DP83867ERGZ

In Stock:: 2167

Quantity:: Add To Cart

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DP83867ERGZ-R-EVM Specifications

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DP83867ERGZ-R-EVM information

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DP83867ERGZ-R-EVM Typical application Circuitry

DP83867ERGZ-R-EVM

The DP83867ERGZ-R-EVM refers to an Evaluation Module (EVM) for the DP83867IR, a high-performance, robust Gigabit Ethernet PHY transceiver designed by Texas Instruments. This EVM is utilized for facilitating development, testing, and demonstration of applications that require Ethernet connectivity. The DP83867IR chip itself is engineered to provide reliable physical layer network connectivity across a wide array of applications, including industrial automation, automotive networks, embedded systems, and more, supporting 10Base-T, 100Base-TX, and 1000Base-T Ethernet standards.

Key Features and Parameters:

- Gigabit Ethernet Support: Ensures compatibility with various network speeds, enabling applications that require high data throughput.

- Comprehensive ESD Protection: Offers enhanced electrostatic discharge protection, making it suitable for industrial environments where electrical noise is prevalent.

- Flexible Interface Support: Includes support for multiple interface standards such as MII, RMII, RGMII, and SGMII, ensuring versatile integration options.

- Advanced Cable Diagnostics: Features built-in diagnostics for troubleshooting network issues, enhancing system reliability.

- Adjustable I/O Voltage Levels: Facilitates compatibility with different logic levels, allowing for integration with a range of microcontrollers and processors.

Application Scenario: Integration of the DP83867ERGZ-R-EVM in a smart industrial sensor network, where sensors collect and transmit data over an Ethernet network for real-time monitoring and analysis.

Circuit Design:

Incorporating the DP83867ERGZ-R-EVM into a smart industrial sensor system involves careful consideration of the PHY's connections and configurations:

1. Ethernet Interface (Connecting to RJ45 Connector): Utilize the differential transmitter and receiver pins (TXP/TXN and RXP/RXN, Pins 47, 48 for TX and Pins 45, 46 for RX, respectively, in RGMII mode) to interface with an RJ45 connector that has integrated magnetics. This setup is essential for maintaining signal integrity in Ethernet communication.

2. Interface with Sensor Controller (RGMII to Controller's Ethernet MAC): The RGMII interface pins, including TX_CTL, TXC, RX_CTL, RXC, and the data lines, should be meticulously connected to the Ethernet MAC of the sensor controller, ensuring the efficient handling of high-speed data.

3. Clock Source (External Oscillator Connection): Connect a stable 25 MHz or 125 MHz external oscillator to the XI pin (Pin 25) for clock input, grounding the XO pin (Pin 26) if not used. This clock source is critical for the operation of the PHY at Gigabit speeds.

4. Power Supply Configuration (Providing 3.3V and 1.8V): Supply the core (VDD) with a stable 3.3V power source and the I/O (VDDIO) with 1.8V, placing decoupling capacitors near these pins to ensure a smooth power supply and mitigate noise.

5. Operational Mode Setup (Configuration Pins): Employ the configuration pins (such as Strap_Mode0, Strap_Mode1) to specify the PHY's operational modes tailored to the sensor network's needs, typically configured through hardware strapping or software control.

Design Considerations:

- Power Supply Integrity: Implementing a robust power management strategy with clean, stable supplies and proper decoupling is vital for the PHY's reliable operation.

- High-Speed Signal Integrity: Ensuring the PCB layout is optimized for high-speed signals, maintaining controlled impedance, and minimizing cross-talk are crucial for the Gigabit Ethernet performance.

- Thermal Management: Given the industrial setting, it's essential to consider the thermal management of the DP83867ERGZ-R-EVM, ensuring it operates within specified temperature ranges.

- EMC and ESD Protection: Designing for electromagnetic compatibility and incorporating additional ESD protection measures can enhance the robustness of the sensor network.

- Diagnostic Features Utilization: Taking advantage of the PHY's advanced diagnostic features can significantly aid in proactive network management and troubleshooting.

Implementing the DP83867ERGZ-R-EVM in a smart industrial sensor network not only demonstrates its ability to support high-speed Ethernet connectivity but also highlights its suitability for applications requiring robust, reliable communication in challenging environments. This application showcases the DP83867ERGZ-R-EVM's versatility and high performance, ensuring effective data transmission in industrial settings.

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DP83867ERGZ-R-EVM.

(3)The PartNo is unused and only in the original unpacked packaging.

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