DP83848CVVX/NOPB - 10/100 Ethernet PHY | Texas Instruments
Артикул: DP83848CVVX/NOPB ✓ АктивенDP83848CVVX/NOPB Обзор
An Ethernet physical-layer transceiver, or Ethernet PHY, is the semiconductor component that connects a digital network controller to copper cabling. It belongs to the hierarchy transceiver IC > Ethernet interface IC > network interface > semiconductor. Unlike a media-access controller, the DP83848C does not implement the complete Ethernet protocol stack; instead, it handles physical signaling, link negotiation, line coding, and conversion between framed digital data and Manchester-coded or scrambled 10BASE-T and 100BASE-TX signals.
Key features include support for both 10 Mbps and 100 Mbps operation, automatic link negotiation, SNI support, and JTAG support. The manufacturer identifies the device as a single-port Ethernet PHY with MII, RMII, and SNI connectivity. These interfaces let the same physical design support controllers using a parallel MII connection, reduced-pin RMII connection, or simple serial network interface. The interface choice affects board area, signal timing, firmware support, and host-port requirements.
The DP83848C architecture separates the digital host interface from the analog copper-network front end. MII provides separate parallel paths for transmit and receive data, clock, carrier sense, and collision indications. RMII reduces the number of host signals by sharing clocks and control lines, while SNI simplifies lower-throughput serial networking designs. JTAG support adds a standardized boundary-scan path for board-level test and manufacturing inspection when the host system enables it.
Typical uses include industrial Ethernet controllers, embedded network equipment, print servers, industrial automation modules, test equipment, and customer-premises network interfaces. Commercial-temperature operation makes the part appropriate for indoor systems where ambient temperatures remain within 0°C to 70°C. A system requiring operation outside that range should use a temperature-rated DP83848 family variant rather than assuming equivalent environmental performance.
Designers should provide the required 3.3 V supply, decoupling, precision bias resistor network, magnetics, and compliant Ethernet magnetic isolation according to the manufacturer datasheet. Keep high-speed analog routing controlled, use the recommended reference and passive networks, and follow the exposed-pad and thermal-layout guidance for the LQFP package. Use the datasheet pin-description and layout examples when assigning signals and planning the board stack-up.
This product guide combines the manufacturer interface descriptions, package and temperature information, lifecycle data, comparison details, and practical implementation guidance. It also distinguishes documented drop-in candidates from options that differ in temperature grade, qualification, or packaging, helping engineers assess PCB reuse and sourcing decisions before schematic release.
Аналоги без доработки для DP83848CVVX/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 DP83848CVVX/NOPB (тот же форм-фактор и посадочное место) — отличается по Package, Supply Voltage, Product Type, Operating Temperature.
DP83848IVVX/NOPB
✅ Прямая заменаУточнить цену
Открыть даташит →DP83848HSQ/NOPB
✅ Прямая заменаУточнить цену
Открыть даташит →DP83848YB/NOPB
✅ Прямая заменаУточнить цену
Открыть даташит →DP83848CVVX/NOPB Характеристики
| Device Type | Single-port 10/100-Mbps Ethernet physical-layer transceiver |
| Supported Data Rates | 10 Mbps and 100 Mbps |
| Host Interfaces | MII, RMII, and SNI |
| JTAG Support | Supported |
| Напряжение питания | 3.3 V nominal |
| Listed Supply Range | 3.3 V to 3.6 V |
| Commercial Temperature Range | 0°C to 70°C |
| Ethernet Standard | IEEE 802.3u |
| Number of Ports | 1 port |
| Корпус | 48-pin LQFP (PT), 7 x 7 mm |
| Тип монтажа | Surface mount |
| Число выводов | 48 pins |
| Power Consumption | 270 mW |
| Link Modes | 10BASE-T and 100BASE-TX |
| Статус RoHS | Compliant |
| AEC-Q100 Qualification | Not qualified |
| Manufacturer Ordering Code | DP83848CVVX/NOPB |
Руководство по цоколевке DP83848CVVX/NOPB в корпусе 48-pin lqfp (pt), 7 x 7 mm
Цоколевка для DP83848CVVX/NOPB (корпус 48-pin lqfp (pt), 7 x 7 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 DP83848CVVX/NOPB.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
DP83848CVVX/NOPB подходит для 6 применениеs: Industrial Automation Controller, Embedded Network Interface, Print Server and Network Appliance, Test and Measurement Instrument, IoT Gateway and Smart Device, Network Communication Module.
Industrial Automation Controller
The DP83848CVVX/NOPB fits an indoor industrial automation controller that needs a dedicated 10/100-Mbps copper-network port. Its single-port PHY, 0°C to 70°C commercial rating, and MII or RMII host connectivity let the controller communicate with sensors, drives, remote I/O, or supervisory software. Use it with the manufacturer reference network and magnetics to preserve signal integrity, then place the decoupling and bias network close to the PHY. The main qualification boundary is ambient temperature: if the enclosure can fall below 0°C or exceed 70°C, select the industrial-temperature family member instead.
Рекомендуется
Embedded Network Interface
The DP83848CVVX/NOPB provides a copper Ethernet physical layer for embedded processors that already implement MAC and upper-layer protocol functions. A host processor can connect through MII for maximum signal flexibility, RMII for a reduced pin count, or SNI for compatible serial designs. Because the PHY supports both 10 Mbps and 100 Mbps, it is useful for legacy and dual-speed equipment links. Follow the datasheet reference layout for the 3.3 V supply, bias resistor, analog receive path, and line-driver network to avoid link instability or excessive radiated emissions.
Рекомендуется
Print Server and Network Appliance
The DP83848CVVX/NOPB is appropriate for a print server, copier interface module, or compact network appliance requiring one 10/100-Mbps copper port. The 48-pin LQFP package supports conventional multilayer PCB construction, while RMII can reduce host-interface wiring when the connected controller supports it. The PHY handles the physical Ethernet signaling while the system controller handles packet processing and protocols. Design the board with short analog traces, compliant magnetic isolation, controlled return paths, and solid 3.3 V decoupling; validate conducted and radiated emissions before production because Ethernet magnetics and PCB geometry strongly influence compliance.
Рекомендуется
Test and Measurement Instrument
The DP83848CVVX/NOPB can add a network service port to an oscilloscope, logic analyzer, data acquisition system, or laboratory instrument. Commercial-temperature operation covers typical indoor lab environments, and MII, RMII, or SNI support lets the instrument select the most practical host connection. A single-port 10/100-Mbps PHY is sufficient for configuration access, remote control, and moderate data transfer. Keep the copper-network section away from sensitive analog measurement circuits, observe the datasheet reference layout and magnetics recommendations, and test link behavior across 10 Mbps and 100 Mbps modes under the intended cable combinations.
Рекомендуется
IoT Gateway and Smart Device
The DP83848CVVX/NOPB suits an IoT gateway or connected smart device that bridges a local 10/100-Mbps Ethernet segment to a processor-based control plane. The PHY's selectable host interfaces support different processor integration strategies, and the 3.3 V operating supply aligns with common embedded systems. Use RMII when host pin count and board routing are priorities, or MII when deterministic parallel timing and broader controller compatibility matter. Preserve the commercial 0°C to 70°C envelope in the product specification, and review enclosure temperature rise because a warm enclosure can exceed the ambient rating even when the external connector is unchanged.
Рекомендуется
Network Communication Module
The DP83848CVVX/NOPB is well suited to a dedicated Ethernet communication module that exposes one copper port to a host board. Because the device is a PHY rather than a complete protocol controller, the host must provide MAC functionality and the required MII, RMII, or SNI signaling. The 48-pin LQFP package is practical for production PCB assembly and allows several modules to reuse a common platform. Implement the manufacturer bias and termination network, use qualified Ethernet magnetic components, and separate the PHY and magnetics from high-current switching stages. Confirm the 3.3 V supply tolerance and 0°C to 70°C environmental limit in the assembled enclosure.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для DP83848CVVX/NOPB — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | DP83848IVVX/NOPB | DP83848HSQ/NOPB | DP83848YB/NOPB |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-pin LQFP (PT), 7 x 7 mm | 48-pin LQFP | 48-pin LQFP | 48-pin LQFP |
| Supported Data Rates | 10 Mbps and 100 Mbps | 10 Mbps and 100 Mbps | 10 Mbps and 100 Mbps | 10 Mbps and 100 Mbps |
| Number of Ports | 1 port | 1 port | 1 port | 1 port |
Ключевые отличия
- Commercial temperature option with a 70°C upper limit (против DP83848IVVX/NOPB)
- Broad host-interface selection (против DP83848YB/NOPB)
- Lower qualification demand for commercial equipment (против DP83848YB/NOPB)
Заметки по проектированию
Follow the manufacturer reference layout for the analog receive path, transmit drivers, bias network, crystal or clock circuitry, and decoupling. Place the 3.3 V bypass capacitor at the supply pins and keep the PHY footprint compact. Route Ethernet signals over continuous reference planes, minimize vias, keep the magnetics close to the PHY, and avoid sharing narrow return paths with switching power stages.
Design the 3.3 V rail for the PHY and Ethernet magnetics as separate loading paths where practical. Use local high-frequency bypass and bulk capacitance at the device, then verify voltage at the pins under 10 Mbps and 100Mbps link traffic. Keep the analog supply return quiet and reference the manufacturer's specified bias network rather than substituting resistor values without checking startup and transmit performance.
Estimated: using the listed 270 mW device power and a 3.3 V supply, the current is approximately 270 mW divided by 3.3 V, or 82 mA. Actual board dissipation depends on the operating mode and surrounding circuitry. The LQFP exposed-pad layout must include the recommended copper area, thermal vias, and solder pattern to avoid concentrating heat around the PHY.
Do not treat the commercial, industrial, extended-temperature, and automotive DP83848 variants as identical in every respect. Confirm the ordered suffix, ambient range, supported host interface, JTAG behavior, resistor network, magnetic component, and exposed-pad construction before updating a released BOM. Also verify whether the controller firmware expects MII, RMII, or SNI timing and configuration at power-up.
Информация о соответствии
The product listing identifies RoHS compliance. The target ordering option is commercial-temperature and is not identified as an AEC-Q100-qualified automotive ordering option.
