DP83865DVH - 1G Ethernet PHY, 128-PQFP | Texas Instruments
MPN： DP83865DVH ✓ 啟用中DP83865DVH 概覽
An Ethernet PHY is the physical-layer component that converts digital Ethernet data supplied by a MAC into electrical signaling for a copper network, and receives analog signals from the cable. Within the Ethernet hierarchy, the PHY connects the digital MAC interface and the 10/100/1000BASE-T medium. This distinction matters because protocol handling remains above the PHY while the DP83865DVH performs line signaling, clock and data recovery, and physical-layer encoding functions.
Verified source data identifies a 1 Gbit/s data rate, eight transceiver channels, a 1.71 V to 1.89 V supply range, approximately 430 mA supply current, and a 128-pin PQFP package. The device integrates physical medium-dependent sublayers required for 10BASE-T, 100BASE-TX, and 1000BASE-T Ethernet. Exact media-interface modes, clock tolerances, transceiver electrical limits, and pin-level functions are not present in the supplied search extracts and therefore require confirmation from the manufacturer datasheet before layout release.
Typical implementation is a copper Gigabit Ethernet port in industrial controllers, embedded computers, test equipment, network interface cards, and communications hardware. The 128-PQFP footprint favors multilayer PCB routing and external magnetics rather than compact modules, while the 1.89 V maximum stated core supply requires a regulator with suitable headroom and power integrity. A network magnetics or integrated coupling arrangement is also required at the cable side, subject to the complete reference design.
Engineers should preserve the exact interface voltage, termination, crystal or clock source, reset, and power-tree requirements given in the full DP83865 datasheet. Because no verified pricing schedule was supplied, unit prices remain marked as data needed rather than being inferred from generic distributor listings. The search data also indicates that no pin-to-pin DP83865 replacement is offered by TI, so substitution requires interface and PCB validation rather than an assumed footprint match.
This page consolidates the verified distributor specifications, procurement sources, replacement evidence, and engineering cautions. It distinguishes confirmed electrical facts from unavailable details and avoids treating functionally similar PHYs as verified drop-in devices. That distinction is critical because Ethernet PHYs may use the same 128-pin package while differing in interface modes, strap behavior, clocking, register maps, and analog performance.
直接替換替代品，適用於 DP83865DVH — 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。
此產品無可直接替換的替代品。
申請替代品DP83865DVH 規格
| Product Type | Gigabit Ethernet physical-layer transceiver |
| Supported Ethernet Protocols | 10BASE-T, 100BASE-TX, 1000BASE-T |
| Maximum Data Rate | 1 Gbit/s |
| Number of Ports | 1 Ethernet port |
| Interface Configuration | 8/8 transceiver |
| Core Supply Voltage Range | 1.71 V to 1.89 V |
| 供應電流 | 430 mA |
| 工作溫度範圍 | 0 C to +70 C |
| Temperature Grade | Commercial |
| Package Type | 128-PQFP |
| Package Dimensions | 14 mm x 20 mm |
| Terminal Form | Gull wing |
| 腳位數 | 128 pins |
| 安裝類型 | Surface mount |
| Integrated PMD Sublayers | Yes |
| Copper Media Support | 10BASE-T, 100BASE-TX, and 1000BASE-T |
DP83865DVH 14 mm x 20 mm 腳位配置指南
DP83865DVH（14 mm x 20 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： DP83865DVH.
請參閱 資料表 以查看完整腳位配置。
典型應用
DP83865DVH 適用於 6 應用s: Industrial Embedded Controller Ethernet Port, Network Interface Card, Programmable Test and Measurement Equipment, Communications Gateway, Data Acquisition System, Power and Energy Monitoring Controller.
Industrial Embedded Controller Ethernet Port
DP83865DVH fits a commercial-temperature embedded controller that needs one copper Ethernet port with 10/100/1000BASE-T support. Its confirmed 1 Gbit/s maximum data rate and integrated PMD sublayers allow the controller MAC to communicate through the PHY without implementing baseband signaling separately. The device uses a 1.71 V to 1.89 V core supply and is specified from 0 C to +70 C, so the system must regulate the rail and maintain its commercial temperature envelope. Use the manufacturer layout for high-speed clocks, digital interfaces, supply returns, and magnetics. The 128-PQFP footprint requires 0.5 mm-pitch routing and multilayer PCB discipline, but it remains practical on a controlled industrial-control board.
推薦
Network Interface Card
DP83865DVH can supply the physical layer for a single-port gigabit network interface card driven by a local controller or ASIC. The PHY supports 10BASE-T, 100BASE-TX, and 1000BASE-T, allowing one copper interface to negotiate legacy or gigabit links where required. The verified 430 mA supply-current figure makes the 1.89 V core rail a substantial load, requiring a regulator with appropriate transient response and copper area. The 14 x 20 mm PQFP offers ample pins and routing access compared with a small QFN, although care is still needed around clocks, digital interfaces, and analog separation. Final card-level validation must include insertion, return loss, link training, thermal behavior, and EMC testing.
推薦
Programmable Test and Measurement Equipment
DP83865DVH is applicable to a 1 Gbit/s copper Ethernet connection on programmable instrumentation when the controller already matches its physical-layer and media requirements. A single PHY supporting 10BASE-T, 100BASE-TX, and 1000BASE-T permits service, control, and data traffic over one connector. The commercial 0 C to +70 C rating is appropriate for ordinary indoor bench equipment, while the 1.71 V to 1.89 V core supply requires a quiet regulator and close decoupling. Designers should isolate high-current switching nodes from PHY circuitry and validate magnetics according to the manufacturer reference design. If higher temperature or diagnostic performance is mandatory, compare a newer qualified PHY rather than assuming the existing 128-pin footprint is interchangeable.
推薦
Communications Gateway
DP83865DVH can provide the copper network endpoint for a communications gateway that bridges a local processor or FPGA to an external 10/100/1000BASE-T network. Its eight transceiver channels and integrated PMD support place physical signaling in one device, while the host remains responsible for MAC-facing control and network traffic. The large 128-PQFP package exposes more routing options for demanding clocks and interfaces than a compact QFN, but its lead pitch requires careful assembly and inspection. The reported 430 mA current also affects the system power budget, so designers should reserve regulator capacity and measure inrush during startup. Confirm supported clock and digital interfaces in the complete datasheet before connecting a particular FPGA or processor bank.
推薦
Data Acquisition System
DP83865DVH can serve as the 1 Gbit/s Ethernet physical layer in a data-acquisition system that transfers synchronized measurements from an FPGA or processing module to a host computer. The PHY handles copper Ethernet support at 10, 100, or 1000 Mbit/s, but sustained application throughput still depends on host-interface timing, packet size, DMA behavior, and processor capacity. The verified 1.71 V to 1.89 V supply requirement should be included in the analog and digital power-budget review, with special attention to the listed 430 mA current. Printed-circuit design should separate noisy processor supplies from PHY references and clocks and preserve the prescribed media-side geometry. Validate packet loss, sustained transfer, cable insertion, and recovery from link interruptions before deployment.
推薦
Power and Energy Monitoring Controller
DP83865DVH is suitable for a commercial power-monitoring controller that exposes measurements, configuration data, and alarms through a copper Ethernet port. Supporting 10BASE-T, 100BASE-TX, and 1000BASE-T allows compatibility with legacy management networks while permitting 1 Gbit/s communication on suitable infrastructure. Because the PHY is part of an embedded system rather than a power-conversion IC, SOA data are not applicable. Its verified 430 mA supply current must be added to the controller's power budget, and the 1.71 V to 1.89 V core range requires a regulator with appropriate headroom. Keep switching-node copper and high di/dt loops away from PHY and magnetics grounding, then test EMC emissions and network robustness with realistic cables and loads.
推薦
推薦產品摘要
工程參考資料，適用於 DP83865DVH — 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 |
|---|---|
| Brand | Texas Instruments |
| Package | 128-PQFP, 14 mm x 20 mm |
| Maximum Data Rate | 1 Gbit/s |
| Ethernet Support | 10BASE-T, 100BASE-TX, 1000BASE-T |
| Core Supply Voltage | 1.71 V to 1.89 V |
| Supply Current | 430 mA |
| Operating Temperature | 0 C to +70 C |
| Pin Count | 128 pins |
| Integrated PMD Sublayers | Yes |
| Temperature Grade | Commercial |
主要差異化特點
- Confirmed support for 10BASE-T, 100BASE-TX, and 1000BASE-T (對比DP83867 application-directed alternate)
- Large 128-PQFP interface and routing package (對比DP83869 application-directed alternate)
- Narrow verified core-supply rail (對比DP83867IRPAPR distributor-listed replacement candidate)
設計說明
Use the verified 1.71 V to 1.89 V core-supply range as the regulator-design boundary and include the listed 430 mA current in the power budget. Estimated core power at 1.89 V and 430 mA is 0.813 W, calculated from 1.89 V x 0.430 A; this is a planning estimate rather than a manufacturer maximum-power specification. Confirm startup current, voltage tolerance, sequencing, all I/O domains, and magnetics supplies from the complete datasheet before selecting regulators or magnetics.
Treat the 128-PQFP as a 0.5 mm-pitch assembly design and allocate its full 14 x 20 mm body plus leads and courtyard. Follow the manufacturer footprint rather than relying on a generic PQFP symbol. Verify pin numbering, pin-1 orientation, solder mask, paste volume, via placement, and assembly clearance. Because the public snippets do not provide the 128-pin map, every net must be checked against the official package drawing before release.
Preserve the complete reference layout for clock inputs, digital interfaces, supply decoupling, analog media signals, magnetics, and ground returns. Keep noisy switching and high di/dt copper away from PHY and transformer grounding, and avoid routing flexible or coax-like media signals through areas with uncontrolled discontinuities. The supplied data does not specify trace lengths, impedance targets, or isolation spacing, so obtain those values from the full manufacturer documentation and PCB guidelines rather than estimating them.
Do not assume DP83867 or DP83869 can be inserted without redesign. TI support explicitly states that no pin-to-pin replacement is offered for DP83865 and describes those devices only as application-dependent alternates. A shared 128-PQFP family, functional gigabit support, or a distributor's functional-replacement description is insufficient proof of compatibility. Check host-interface modes, I/O voltage, clocks, straps, MDIO behavior, software, magnetics, and every package pin before substitution.
合規資訊
The supplied verified snippets do not state formal RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim is inferred from the manufacturer identity or commercial-temperature grade.
