DP83848CVV/NOPB - 10/100 Ethernet PHY | Texas Instruments
MPN： DP83848CVV/NOPB ✓ 啟用中DP83848CVV/NOPB 概覽
An Ethernet physical-layer transceiver, commonly called an Ethernet PHY, converts between a controller-facing digital interface and the differential signaling used on twisted-pair Ethernet cables. The DP83848C family belongs to the hierarchy of Ethernet transceivers, physical-layer devices, network interface ICs, and semiconductor interface components. Its MII and SNI connectivity supports embedded networking systems where an external controller or processor manages packet processing and higher-layer protocols.
The DP83848CVV/NOPB supports 10 Mbps and 100 Mbps Ethernet operation and includes SNI and JTAG features highlighted on the Texas Instruments product page. Commercial-temperature operation makes it appropriate for temperature-controlled equipment such as industrial controllers, embedded gateways, test systems, and communication appliances. The 48-LQFP package provides a conventional surface-mount footprint and a clearly defined pin count for PCB layout and assembly planning.
The device separates the Ethernet medium interface from MAC and protocol processing. This division allows the network controller to handle frame construction, addressing, and the TCP/IP stack while the PHY handles the electrical signaling at the cable interface. The 3.3 V operating range shown for this family supports conventional embedded and industrial logic systems, while the separated PHY function helps isolate analog signal considerations from the controller design.
Typical uses include industrial Ethernet equipment, programmable automation controllers, embedded data acquisition systems, network-connected test instruments, and compact communications gateways. Designers should also evaluate the controller-side interface, magnetics, cable reach, automotive or extended-temperature requirements, and board-level signal integrity before finalizing a design. For systems operating outside 0°C to 70°C, an extended-temperature variant should be selected only after checking its complete electrical specification.
A primary layout consideration is the separation of analog and digital circuitry. Place the PHY close to its RJ45 or magnetics section, keep the differential pairs short and continuous, provide a compact ground reference, and route supply and decoupling connections independently from sensitive Ethernet signals. Follow the manufacturer datasheet for the final pin assignments, recommended external components, PCB stack-up, and reference layout before releasing production artwork.
This page combines the device identity, package information, temperature range, interface features, application guidance, drop-in candidate analysis, and engineering design considerations into one practical engineering reference. It also distinguishes commercial-temperature choices from extended-temperature alternatives and highlights which compatibility details must still be confirmed against the manufacturer datasheet.
直接替換替代品，適用於 DP83848CVV/NOPB — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DP83848CVV/NOPB （相同外形與佔位） — 差異在於 Package, Supply Voltage, Product Type, Operating Temperature, Auto-MDIX.
DP83848IVVX/NOPB
✅ 直接替換聯絡詢價
查看資料表 →DP83848HSQ/NOPB
✅ 直接替換聯絡詢價
查看資料表 →DP83848CVVX/NOPB
✅ 直接替換聯絡詢價
查看資料表 →DP83848CVV/NOPB 規格
| Product Type | Single-port Ethernet physical-layer transceiver |
| Supported Ethernet Data Rate | 10 Mbps to 100 Mbps |
| 供應電壓 | 3.0 V to 3.6 V |
| Nominal Supply Voltage | 3.3 V |
| 工作溫度 | 0°C to +70°C |
| Temperature Grade | Commercial |
| Port Count | 1 port |
| Controller Interface | SNI |
| Debug Interface | JTAG |
| 封裝 | 48-pin LQFP (PT) |
| Package Dimensions | 7 mm x 7 mm |
| 安裝類型 | Surface mount |
| 腳位數 | 48 pins |
| Ethernet Mode | Full and half duplex |
DP83848CVV/NOPB 7 mm x 7 mm 腳位配置指南
DP83848CVV/NOPB（7 mm x 7 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： DP83848CVV/NOPB.
請參閱 資料表 以查看完整腳位配置。
典型應用
DP83848CVV/NOPB 適用於 6 應用s: Industrial Ethernet Controller, Embedded Network Gateway, Data-Acquisition System, Programmable Automation Terminal, Networked Test Instrument, Communication Appliance.
Industrial Ethernet Controller
The DP83848CVV/NOPB fits a temperature-controlled industrial controller that requires one 10/100-Mbps Ethernet physical layer. Its single-port architecture separates cable-interface signaling from the controller's MAC and protocol processing, allowing the system processor to concentrate on real-time control and network software. The 3.0 V to 3.6 V operating range aligns with conventional embedded logic, while SNI and JTAG support provide useful controller connectivity and diagnostics. Because the specified commercial range is 0°C to +70°C, enclosure heating or cooling may be required in factories, process equipment, or outdoor installations. Use the manufacturer reference layout to separate the sensitive Ethernet channel from switching and processor circuitry.
推薦
Embedded Network Gateway
A compact network gateway can use the DP83848CVV/NOPB as its single Ethernet physical-layer interface while an application processor handles routing, protocol conversion, or management traffic. Supporting both 10 Mbps and 100 Mbps provides compatibility with legacy 10BASE-T equipment as well as faster 100BASE-TX links. The 48-pin LQFP package is practical for multilayer PCB designs and automated assembly, and the 3.3 V supply is compatible with many embedded processor platforms. JTAG support can assist board-level bring-up and diagnostics. The design should preserve short differential connections to the magnetics, provide local supply bypassing, and maintain a continuous ground reference beneath the analog signal path.
推薦
Data-Acquisition System
The DP83848CVV/NOPB is suitable for measurement and data-acquisition equipment that must transfer sampled information over a single wired Ethernet connection. The PHY handles the physical-layer signaling for 10BASE-T or 100BASE-TX media, while the host controller manages buffering, timestamps, and transfer protocols. A 100 Mbps link can improve synchronization between acquisition and supervisory systems, while 10 Mbps compatibility supports older laboratory infrastructure. The device's commercial-temperature range is appropriate for indoor instruments with controlled ambient conditions. During PCB design, isolate the Ethernet and magnetics section from analog measurement circuitry and use the manufacturer reference layout to minimize coupling into sensitive sensor and converter nodes.
推薦
Programmable Automation Terminal
A programmable automation terminal can use the DP83848CVV/NOPB to add wired network connectivity to a compact operator panel or remote I/O station. The controller can communicate through MII or SNI while the PHY provides the physical-layer connection to the plant network. The commercial-temperature grade covers many indoor production environments, and the 48-LQFP footprint supports conventional PCB assembly. In installations where ambient temperature may fall below 0°C or exceed 70°C, the extended-temperature DP83848 variants are more appropriate. Keep the controller interface and PHY clocking paths away from the Ethernet magnetics, and route supply and ground connections to prevent switching or processor noise from disturbing link performance.
推薦
Networked Test Instrument
Test and measurement instruments can use the DP83848CVV/NOPB as a dedicated 10/100-Mbps Ethernet interface for remote control, logging, and firmware updates. The single-port implementation minimizes board area compared with a multi-port PHY and leaves protocol processing to the instrument's main controller. The device is specified for 0°C to +70°C operation, making it suitable for typical laboratory and service environments with controlled temperature. Its JTAG support can complement board diagnostics during development. In a high-density instrument, place the PHY and magnetics toward the rear-panel connector, maintain controlled differential impedance, and provide a quiet ground and decoupling arrangement so Ethernet activity does not degrade precision measurement circuitry.
推薦
Communication Appliance
A small communication appliance can adopt the DP83848CVV/NOPB when one Ethernet port is sufficient for management traffic, service access, or a dedicated network segment. The 10/100-Mbps support allows deployment in both modern 100BASE-TX networks and older 10BASE-T infrastructure, improving installation flexibility. The 3.3 V supply and 48-pin LQFP package fit conventional embedded boards, while SNI and JTAG support assist system integration and diagnostic workflows. The commercial temperature rating is appropriate for indoor appliances that maintain their operating environment within 0°C to +70°C. Follow the manufacturer layout guidance for the PHY-to-magnetics path, and keep high-current power-conversion circuitry away from the differential Ethernet pairs.
推薦
工程參考資料，適用於 DP83848CVV/NOPB — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DP83848IVVX/NOPB | DP83848HSQ/NOPB | DP83848CVVX/NOPB |
|---|---|---|---|---|
| Package | 48-pin LQFP (PT) | 48-pin LQFP | 48-pin LQFP | 48-pin LQFP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Type | Single-port Ethernet physical-layer transceiver | Single-port Ethernet physical-layer transceiver | Single-port Ethernet physical-layer transceiver | Single-port Ethernet physical-layer transceiver |
| Supported Data Rate | 10 Mbps to 100 Mbps | 10 Mbps to 100 Mbps | 10 Mbps to 100 Mbps | 10 Mbps to 100 Mbps |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Temperature Grade | Commercial | Extended industrial | Extended temperature | Commercial |
| Port Count | 1 port | 1 port | 1 port | 1 port |
主要差異化特點
- Commercial-temperature coverage matches cost-sensitive indoor equipment (對比DP83848IVVX/NOPB)
- Compact single-port Ethernet interface (對比DP83848HSQ/NOPB)
- Controller integration features explicitly listed by the manufacturer (對比DP83848CVVX/NOPB)
設計說明
Place the DP83848CVV/NOPB near the Ethernet connector and magnetics, and route the 10BASE-T or 100BASE-TX differential pairs as short, continuous traces on a continuous ground plane. Avoid introducing test pads, vias, or unrelated signal paths in the sensitive differential channel unless the manufacturer reference layout permits them. Confirm controlled impedance and the recommended stack-up against the DP83848C datasheet before releasing artwork.
Use the manufacturer's recommended supply and decoupling arrangement, including the specified operating range of 3.0 V to 3.6 V. Place bypass capacitors close to the relevant supply and ground pins and provide a low-impedance connection between the capacitor return and the device ground reference. Separate Ethernet-side supply routing from noisy processor and switching-converter paths to reduce conducted and radiated coupling.
Treat the PHY, magnetics, RJ45 connector, and cable-side routing as one controlled signal path. Keep the Ethernet differential pairs away from switching nodes, crystal-clock traces, and high-current return paths. Use the manufacturer's reference component values and placement because external resistor, capacitor, and magnetics selections can affect rise time, link margin, and electromagnetic performance.
Do not treat a matching 48-LQFP outline as proof of drop-in compatibility. Before replacing the DP83848CVV/NOPB, compare every pin, supply requirement, timing parameter, reset or clock arrangement, controller interface, and external component value in the manufacturer documentation. Also verify the operating-temperature range, because a package-compatible variant may use a different temperature grade.
合規資訊
The component is an Ethernet transceiver rather than an automotive-qualified power semiconductor. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations require confirmation from the current manufacturer product documentation.
