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Name: DP83849IFVSX/NOPB
Brand: Texas Instruments
SKU: DP83849IFVSX/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments DP83849IFVSX/NOPB

Part No.:: DP83849IFVSX/NOPB

Manufacturer:: Texas Instruments

Package:: 80-TQFP

Datasheet:: DP83849IFVSX/NOPB.pdf

Description:: IC TRANSCEIVER 2/2 80TQFP

In Stock:: 3711

Quantity:: Add To Cart

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DP83849IFVSX/NOPB Specifications

Package/Case:
80-TQFP
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
Transceiver
Protocol:
Ethernet
NumberofDrivers/Receivers:
2/2
Duplex:
-
ReceiverHysteresis:
-
DataRate:
-
Voltage-Supply:
3V ~ 3.6V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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DP83849IFVSX/NOPB information

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DP83849IFVSX/NOPB Typical application Circuitry

DP83849IFVSX NOPB

The DP83849IFVSX/NOPB is a sophisticated, dual-port Ethernet PHY chip by Texas Instruments, specifically designed for facilitating robust network communications via twisted-pair cables. This device is adept at managing both 10Base-T and 100Base-TX Ethernet connections, thereby providing versatile connectivity solutions for a myriad of applications. Its dual-port nature makes it particularly valuable in scenarios demanding high availability, redundancy, or segregated network traffic management, such as in industrial networks, automotive systems, redundant network paths, and critical infrastructure monitoring.

Key Features and Parameters:

- Dual-Port Operation: Supports two independent Ethernet connections, enabling complex network configurations and redundancy.

- Auto-MDI/MDIX Cross Over: Automatically configures the connection to support both straight-through and crossover network cables, reducing installation errors and complexity.

- Energy Efficiency: Implements Energy Efficient Ethernet (EEE) standards to reduce power usage during periods of low data transmission.

- Cable Diagnostics: Integrated cable diagnostics facilitate troubleshooting and maintenance, enhancing network reliability.

- Support for Large Frames: Capable of handling jumbo frames, making it suitable for high-throughput environments requiring substantial data packets.

Application Scenario: Deployment of the DP83849IFVSX/NOPB in a traffic management system for smart city infrastructure, which requires uninterrupted network communication for real-time data collection and analysis.

Circuit Design:

Embedding the DP83849IFVSX/NOPB into a traffic management system involves careful consideration of pin connections and overall circuit configuration:

1. Ethernet Connections (TX+, TX-, RX+, RX- for both ports; utilizing Pins 1, 2, 3, 6 for Port 1 and Pins 45, 46, 47, 50 for Port 2): Direct these pins to RJ45 Ethernet connectors with built-in transformers to ensure signal quality and network integrity.

2. Communication with Control Unit (TXD[0-3], RXD[0-3] for Ports 1 and 2; using Pins 11-12, 14-15 for Port 1, and analogous pins for Port 2): Interface these pins with the control unit's Ethernet MAC, selecting between MII and RMII modes based on the control unit's interface and bandwidth needs.

3. Clock Inputs (X1, X2 on Pins 9, 10 for Port 1; replicate for Port 2 with an appropriate crystal oscillator): Attach a crystal oscillator to provide the DP83849IFVSX/NOPB with the necessary clock signals, ensuring precise timing for data transmission.

4. Power Supply Connections (VDD and GND across multiple pins for stability): Supply a consistent 3.3V power source to VDD, grounding all related pins to stabilize the operating environment and reduce interference.

5. Operational Configuration (CFG[0-4] across various pins for setting operational parameters): Use these pins to configure operational modes, interface preferences, and performance settings, often established through hardware strapping for permanent configuration or through software for dynamic adjustments.

Design Considerations:

- Decoupling for Power Stability: Implement decoupling capacitors close to the power pins to smooth out voltage transients and stabilize the power supply.

- Optimized Signal Routing: Design the PCB layout to minimize the length of critical signal paths, maintaining impedance control and reducing potential for signal degradation.

- Heat Dissipation: Ensure that the design accommodates effective heat dissipation, especially important in enclosed or densely packed installations.

- Electromagnetic Compatibility (EMC): Plan for EMC by carefully placing components and routing traces to minimize interference, crucial for reliable operation in a dense urban environment.

- Leveraging Diagnostic Features: Incorporate the capability to utilize the built-in cable diagnostics to preemptively identify and resolve connectivity issues, thereby maintaining system integrity.

Integrating the DP83849IFVSX/NOPB into a smart city's traffic management system not only underlines the chip's utility in supporting critical network functions but also exemplifies its role in ensuring seamless and reliable data communication. This application underscores the DP83849IFVSX/NOPB's adaptability and efficiency, marking it as an exemplary choice for networked systems in demanding operational contexts.

DP83849IFVSX/NOPB FAQ

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6. What is the process for return or replacement of DP83849IFVSX/NOPB?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DP83849IFVSX/NOPB we delivered, we will accept the replacement or return of the DP83849IFVSX/NOPB only when all of the below conditions are fulfilled:

(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 DP83849IFVSX/NOPB.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations