DP83849IDVSX/NOPB - Dual 10/100 Ethernet PHY | TI
料号： DP83849IDVSX/NOPB ✓ 量产中DP83849IDVSX/NOPB 概述
An Ethernet PHY transceiver is the physical-layer interface between a network controller or embedded system and an Ethernet medium. The DP83849IDID family operates within the 10BASE-T and 100BASE-TX Ethernet hierarchy, translating logical data into physical signaling and recovering data from received signals. A dual-port PHY can support two independent links, making it useful where equipment needs redundant connectivity, network management access, or simultaneous communication between wired network segments.
The DP83849IDVSX/NOPB combines two 10/100-Mbps channels, a 3.3 V-class operating supply, and fiber support in one integrated component. Its industrial temperature range of -40 °C to 85 °C supports deployments across factory automation, industrial networking, wireless remote base stations, and embedded communications equipment. The 80-pin TQFP package exposes separate PHY channels and associated interface signals while enabling conventional multilayer-board assembly.
The X suffix in the orderable identifier identifies the reel-packed form used for automated production, while NOPB denotes the lead-free finish. The physical package is designated PFC by Texas Instruments and contains 80 pins. Because the PHY interfaces with external magnetics, cabling, and a network controller, correct reference-design connectivity, controlled impedance routing, and correct termination are as important as the device's headline speed and port count.
Typical applications include dual-port industrial Ethernet equipment, factory floor controllers, networked sensors, embedded gateways, remote base-station equipment, and systems requiring copper and fiber connectivity options. Each port can serve a 10-Mbps or 100-Mbps Ethernet segment, while the common 3.3 V supply simplifies system power architecture in industrial and communications equipment.
Designers should place the PHY, its crystal or clock source, magnetic-interface components, and decoupling capacitors according to the manufacturer's reference layout. Maintain short, controlled-impedance traces for high-speed signals, provide clean return paths, and observe the exact pin assignments and external component values in the Texas Instruments datasheet before releasing a PCB layout.
This product guide combines the verified ordering information, core operating characteristics, package details, and practical design considerations for the DP83849IDVSX/NOPB. It also distinguishes a true same-footprint replacement from reel and tray ordering variants, helping engineers evaluate PCB reuse without overlooking assembly, lifecycle, or signal-integrity constraints.
直接替换替代料： DP83849IDVSX/NOPB ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DP83849IDVSX/NOPB （相同外形与封装尺寸） ——差异在于 Package, Temperature Grade.
该产品暂无直接替换替代料。
请求替代料DP83849IDVSX/NOPB 规格参数
| Product Type | Dual-port 10/100-Mbps Ethernet PHY transceiver |
| Number of Ports | 2 ports |
| Supported Data Rates | 10 Mbps and 100 Mbps |
| Number of Drivers | 2 drivers |
| Number of Receivers | 2 receivers |
| 工作电源电压 | 3 V to 3.6 V |
| 工作温度 | -40 °C to 85 °C |
| Temperature Grade | Industrial temperature |
| Protocol | Ethernet |
| Fiber Support | Supported |
| 封装 | 80-pin TQFP (PFC) |
| Package Dimensions | 12 mm × 12 mm |
| 安装类型 | Surface mount |
| Packaging Form | Tape and reel |
| Lead Finish | Lead-free NOPB |
| 引脚数量 | 80 pins |
| Typical Application | Dual-port industrial 10/100-Mbps Ethernet equipment |
DP83849IDVSX/NOPB 12 mm × 12 mm 引脚配置指南
DP83849IDVSX/NOPB（12 mm × 12 mm 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： DP83849IDVSX/NOPB.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83849IDVSX/NOPB 适用于 6 应用s: Industrial Ethernet Controllers, Redundant Network Equipment, Factory Floor Networked Sensors, Embedded Communications Gateways, Wireless Remote Base Stations, Networked Test and Measurement Products.
Industrial Ethernet Controllers
The DP83849IDVSX/NOPB is well suited to industrial controllers because it combines two 10/100-Mbps Ethernet channels with an industrial temperature range of -40 °C to 85 °C. A controller can use one channel for operational equipment traffic and the other for a management network, reducing the number of separate PHY packages on the PCB. The 3 V to 3.6 V supply also aligns with conventional embedded logic. Designers should reproduce the manufacturer's reference-layout guidance for the 80-pin TQFP, including short high-speed routes, local decoupling, controlled-impedance Ethernet traces, and the prescribed magnetic-interface network.
推荐
Redundant Network Equipment
The DP83849IDVSX/NOPB provides two independent 10/100-Mbps Ethernet channels, making it useful in equipment that maintains a primary and backup network path. The two-port arrangement can simplify redundant communication without requiring two single-channel PHY packages, while fiber support broadens the possible physical media. The key design trade-off is that each channel still needs the correct external interface components and routing discipline. Follow the Texas Instruments reference design to preserve signal integrity and ensure that both channels have stable references, isolation, and compliant magnetics.
推荐
Factory Floor Networked Sensors
Factory-floor sensors and condition-monitoring nodes can benefit from the DP83849IDVSX/NOPB's two 10/100-Mbps ports and -40 °C to 85 °C industrial rating. One port may connect a local controller while another links the node to a plant network or maintenance interface. The device's Ethernet functionality supports integration with existing 10BASE-T or 100BASE-TX infrastructure rather than imposing a proprietary wired protocol. Designers must keep the PHY and magnetic interface close together, maintain controlled-impedance routing, and check the enclosure temperature because the PCB and cable environment can exceed the nominal ambient.
推荐
Embedded Communications Gateways
An embedded gateway often needs several wired network functions, and the DP83849IDVSX/NOPB can place two 10/100-Mbps Ethernet links behind one controller interface. One channel can serve an equipment-side network while the other connects to an upstream infrastructure network. Its 3 V to 3.6 V operating range supports integration into 3.3 V embedded systems, and the dual-port architecture can reduce board-area requirements relative to two separate PHY devices. The implementation should follow the manufacturer clocking, reset, decoupling, and media-network layouts to avoid interoperability or signal-integrity problems.
推荐
Wireless Remote Base Stations
The DP83849IDVSX/NOPB is applicable to wireless remote base-station equipment that also requires wired service, monitoring, or backhaul Ethernet connections. Two independent 10/100-Mbps channels allow the platform to separate operational traffic from management access, while fiber support can assist installations where copper reach is unsuitable. Its industrial temperature range supports equipment intended for less controlled environments. Layout engineers should allocate the PFC package footprint carefully, use a stable clock source, and follow the manufacturer reference design so that both Ethernet channels meet their intended signal-integrity requirements.
推荐
Networked Test and Measurement Products
The DP83849IDVSX/NOPB can provide two standard 10/100-Mbps links in networked test and measurement equipment, supporting separate control and data paths. The dual-channel arrangement simplifies integration when an instrument must remain accessible during a test while also transferring data to a separate network. The -40 °C to 85 °C range supports industrial or laboratory-grade platforms, but the final product must still control internal temperature rise. Use the Texas Instruments reference layout, preserve uninterrupted ground returns, and verify magnetics and termination against the exact channel configuration in the datasheet.
推荐
工程参考数据： DP83849IDVSX/NOPB ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Product Type | Dual-port 10/100-Mbps Ethernet PHY transceiver |
| Brand | Texas Instruments |
| Package | 80-pin TQFP (PFC) |
| Port Count | 2 ports |
| Data Rate | 10 Mbps and 100 Mbps |
| Drivers and Receivers | 2/2 |
| Operating Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40 °C to 85 °C |
| Fiber Support | Yes |
| Mounting Type | Surface mount |
关键差异点
- Two integrated network channels （对比 DP83849IDVS/NOPB)
- Industrial-temperature Ethernet interface （对比 CYV15G0203TB-BGXC)
- Copper and fiber-oriented connectivity （对比 CYV15G0203TB-BGC)
设计说明
Use the Texas Instruments PFC 80-pin reference layout as the geometry and routing baseline. Place the PHY close to its magnetic-interface components, keep Ethernet differential traces short and matched, and preserve an uninterrupted ground plane beneath the pair. Confirm every supply and ground connection against the exact PFC pin table before routing, because a package drawing alone does not define the required network topology.
Treat the two Ethernet channels independently during layout and validation. Maintain the manufacturer-recommended trace geometry, provide the specified decoupling near the IC, and avoid routing sensitive Ethernet nets through areas affected by clocks, switching regulators, or high-current return paths. Validate insertion loss, return loss, differential impedance, and radiated or conducted emissions on the final multilayer PCB rather than relying only on schematic review.
Do not confuse DP83849IDVSX/NOPB with the tray-packed DP83849IDVS/NOPB when preparing a production BOM or assembly instruction. The electrical device is the same, but the incoming packing format differs and may affect tape-and-reel tooling, feeder setup, and material handling. More importantly, verify that a proposed alternative has the identical 80-pin PFC footprint and pin functions rather than relying only on the family name or a generic cross-reference entry.
Design for the full -40 °C to 85 °C operating range by checking enclosure airflow, PCB copper exposure, and temperature rise of nearby magnetics and regulators. The PHY's operating-temperature rating does not remove the need for a system-level thermal assessment. Place thermal-sensitive components away from concentrated heat sources and use the manufacturer's layout to preserve the intended supply and ground-plane geometry under changing temperatures.
合规信息
The NOPB ordering suffix identifies the lead-free finish. A cross-reference listing reports the DP83849ID family as halogen-free compliant and gives an estimated EOL date of 2028. No RoHS, REACH, or conflict-minerals statement is established for the exact ordering code.
