DP83849IFVSX/NOPB - Dual-Port 10/100 Ethernet PHY | TI
Артикул: DP83849IFVSX/NOPB ✓ АктивенDP83849IFVSX/NOPB Обзор
An Ethernet physical-layer transceiver, commonly called an Ethernet PHY, converts digital data into signals suitable for transmission over copper or fiber media while recovering incoming signals and supporting standard link negotiation functions. Within the network hierarchy, a PHY sits between a MAC or network controller and physical communication media, connecting higher-level Ethernet packet processing to 10/100-Mbps physical-layer interfaces.
The DP83849IF series is intended for applications requiring more than one Ethernet port. Its dual-port architecture can support equipment-management networks, redundant links, industrial controllers, remote base stations, and network switches. Flexible port switching adds board-level configuration flexibility for designs that must route communication resources according to system operating mode. Fiber support distinguishes this variant from copper-only members of the family and supports links over optical media where distance, isolation, or electrical-environment considerations favor fiber.
The industrial-temperature classification makes the device appropriate for equipment expected to operate beyond commercial-temperature environments. Its 80-pin TQFP package exposes the dual-channel circuitry and associated configuration, clock, power, media, and control interfaces. The 12 x 12 mm package is substantially larger than compact QFN Ethernet PHYs, but that footprint provides a practical path to a high pin count and can simplify routing in equipment with multiple copper and fiber interfaces.
Typical applications include industrial Ethernet gateways, dual-port network controllers, remote monitoring equipment, industrial switches, remote base stations, and optical network interfaces. When two ports serve different media or redundant network paths, the transceiver should be paired with a suitable Ethernet MAC, magnetic-interface components for copper links, optical components for fiber links, and a layout that isolates sensitive clock and data signals.
The primary design considerations are power-supply integrity, media-interface component selection, clock quality, thermal performance, and signal routing around the two channels. Follow the manufacturer's pin-description table and reference layout when assigning PCB tracks. Decoupling capacitors should be placed close to the appropriate supply pins, and copper and fiber media interfaces must be routed according to the recommended topology to avoid degrading signal integrity or electromagnetic performance.
This page organizes the available device specifications, sourcing information, design guidance, and carefully scoped replacement information. It also distinguishes exact drop-in compatibility from related family members whose fiber support or package construction differs, helping engineers determine whether a board can be reused without layout or functionality changes.
Аналоги без доработки для DP83849IFVSX/NOPB — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с DP83849IFVSX/NOPB (тот же форм-фактор и посадочное место) — отличается по Product Type, Supply Voltage.
DP83849IVSX/NOPB
✅ Прямая заменаУточнить цену
Открыть даташит →DP83849IFVSX/NOPB Характеристики
| Product Type | Dual-port Ethernet physical-layer transceiver |
| Supported Data Rate | 10/100 Mbps per port |
| Number of Ports | 2 ports |
| Number of Transceivers | 2/2 Ethernet transceivers |
| Media Support | Copper and fiber support |
| Напряжение питания | 3.3 V |
| Temperature Grade | Industrial temperature |
| Port Switching | Flexible port switching |
| Package Type | 80-pin TQFP |
| Package Dimensions | 12 x 12 mm |
| Тип монтажа | Surface mount |
| Protocol Support | 10/100-Mbps Ethernet |
| Maximum Ethernet Link Rate | 100 Mbps per port |
Руководство по цоколевке DP83849IFVSX/NOPB в корпусе 12 x 12 mm
Цоколевка для DP83849IFVSX/NOPB (корпус 12 x 12 mm). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для DP83849IFVSX/NOPB.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
DP83849IFVSX/NOPB подходит для 6 применениеs: Industrial Ethernet Gateway, Remote Monitoring Station, Redundant Network Controller, Industrial Ethernet Switch, Remote Base Station, Optical Network Interface.
Industrial Ethernet Gateway
The DP83849IFVSX/NOPB fits an industrial Ethernet gateway that needs two physical-layer channels alongside a host controller or MAC. Its two 10/100-Mbps ports support copper connectivity for local equipment and can provide a second path for management, redundancy, or upstream aggregation. The industrial-temperature designation aligns with equipment intended for extended operating environments, while fiber support gives system architects a path to optical links where electrical isolation or link distance is important. The 80-pin TQFP footprint requires a routed PCB area and careful placement of bypass, clock, and media-interface components.
Remote Monitoring Station
A remote monitoring station can use the DP83849IFVSX/NOPB when it must connect a controller to both a local network and a separate management or backhaul network. The dual-port arrangement reduces the need for two unrelated physical-layer devices when the station operates at 10 or 100 Mbps. Copper links suit shorter local connections, while the fiber-support capability can serve installations where an optical backhaul is more appropriate. Designers should budget board area for the 12 x 12 mm TQFP and follow manufacturer routing guidance for clock, data, and media signals.
Redundant Network Controller
The DP83849IFVSX/NOPB is suitable for a redundant network-controller design in which two physical channels feed one host through an external MAC or switching arrangement. Its two 10/100-Mbps transceivers provide parallel physical-layer resources, while flexible port switching supports equipment that can allocate connections for normal operation, management, or failover. The PHY does not implement the complete redundancy protocol; higher-level software, switch logic, and fault detection remain system responsibilities. Copper media components and their placement must be matched to the manufacturer's interface guidance.
Industrial Ethernet Switch
The DP83849IFVSX/NOPB can serve as the physical-layer element of a compact industrial Ethernet switch or multiport network interface. Two 10/100-Mbps channels provide copper port connectivity, and the fiber-supported configuration can add an optical uplink on the same board. This mixed-media approach is useful in factory networks where local devices connect over copper while inter-building or control-room links use fiber. The implementation must include suitable magnetic or optical media circuitry, stable clocking, controlled power delivery, and routing that preserves the integrity of both channels.
Remote Base Station
The DP83849IFVSX/NOPB fits remote base-station equipment that requires multiple Ethernet physical links for management, payload transport, or service access. Two independently addressed transceiver channels allow a system architect to avoid duplicating the complete physical-layer circuitry when 10/100-Mbps links are sufficient. The fiber option is particularly relevant where the installation environment makes copper less desirable or where an optical uplink simplifies network segmentation. The device's industrial-temperature positioning supports industrial communications equipment, subject to confirmation of the complete environmental specification for the finished system.
Optical Network Interface
The DP83849IFVSX/NOPB is appropriate for an optical network-interface board built around the DP83849IF fiber-support configuration. It can connect a digital Ethernet controller to optical media while retaining a second 10/100-Mbps physical channel for copper management traffic or another network segment. The device operates from 3.3 V and is available in an 80-pin TQFP package, giving the design enough connections for dual-channel media and control functions. External optical components and their isolation requirements must be evaluated against the complete interface circuitry specified by the manufacturer.
Справочные инженерные данные для DP83849IFVSX/NOPB — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | DP83849IVSX/NOPB |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 80-pin TQFP (12 x 12 mm) | 80-pin TQFP (12 x 12 mm) |
| Number of Ports | 2 | 2 |
| Supported Data Rate | 10/100 Mbps per port | 10/100 Mbps per port |
| Supply Voltage | 3.3 V | 3.3 V |
| Temperature Grade | Industrial temperature | Industrial temperature |
| Fiber Support | Yes | No |
| Mounting Type | Surface mount | Surface mount |
Ключевые отличия
- Adds fiber support within the dual-port DP83849 industrial family (против DP83849IVSX/NOPB)
- Provides two configurable 10/100-Mbps physical channels (против DP83849IVSX/NOPB)
- Uses an 80-pin 12 x 12 mm TQFP package with two full port channels (против DP83849IVSX/NOPB)
Заметки по проектированию
Use the Texas Instruments DP83849IF reference layout as the basis for component placement and trace routing. Place the required bypass capacitors adjacent to their associated supply pins, provide a low-impedance return path for each channel, and isolate clock inputs from noisy media circuitry. The 80-pin TQFP footprint has closely spaced leads, so assembly design should account for solder bridging, thermal relief, and the transition between fine-pitch device pads and board traces.
Keep the two 10/100-Mbps channels physically distinct, especially their clocks, data paths, and media interfaces. Route copper media pairs as controlled-impedance differential pairs if the selected interface design requires them, and keep external magnetic-interface or optical components close to their associated PHY pins. Avoid placing high-current or switching-supply paths beneath sensitive media signals, and follow the manufacturer interface-layout guidance for the selected media components.
Do not substitute the DP83849IVSX/NOPB when the target design requires the DP83849IF fiber-support feature. The packages align, but the functional media capability does not. Before reusing a PCB, compare the complete pin-description tables, power requirements, clock connections, reset or strap configuration, media interfaces, and exposed or unused positions. A package match alone does not establish that an assembled board will function after substitution.
Информация о соответствии
The component is an industrial-temperature Ethernet interface IC rather than an automotive-qualified AEC-Q100 device. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals statements require confirmation from the manufacturer's current product documentation.
