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乙太網路 IC
乙太網路 PHY

DP83825I

現行

具有 50MHz 速率且外形尺寸最小 (3mm x 3mm) 的低功耗 10/100Mbps 乙太網路 PHY 收發器

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產品規格表

DP83825I

現行
產品規格表 立即訂購

產品詳細資料

Datarate (Mbps) 10/100 Interface type RMII (Master and Slave Mode) Rating Catalog Number of ports Single Features Cable diagnostics, EEE, Low power, Single supply, WoL I/O supply voltage (typ) (V) 1.8, 3.3 Operating temperature range (°C) -40 to 85 Number of LEDs 2 ESD HBM (kV) 4
Datarate (Mbps) 10/100 Interface type RMII (Master and Slave Mode) Rating Catalog Number of ports Single Features Cable diagnostics, EEE, Low power, Single supply, WoL I/O supply voltage (typ) (V) 1.8, 3.3 Operating temperature range (°C) -40 to 85 Number of LEDs 2 ESD HBM (kV) 4
WQFN (RMQ) 24 9 mm² (3 mm × 3 mm)
  • Ultra Small Form Factor 10/100Mbps PHY : QFN 3mm × 3mm, 24 pin
  • Cable reach up to 150 meters
  • Very low power consumption < 127mW
  • Integrated MDI and MAC termination resistors
  • Programmable energy saving modes
    • Active sleep
    • Deep power-down
    • Energy Efficient Ethernet (EEE) IEEE 802.3az
    • EEE support for legacy MAC
    • Wake-on-LAN (WoL)
  • Voltage mode line driver
  • MAC interface: RMII (leader and follower mode)
  • Single 3.3V power supply
  • I/O voltages: 1.8V and 3.3V
  • Repeater : RMII back-to-back mode in unmanaged mode
  • MDC/MDIO Interface for configuration and status
  • Fast link drop modes
  • Diagnostics tools: cable diagnostics, built-in self test (BIST), loopback modes
  • Programmable Hardware interrupt pin
  • Operating temperature range: –40°C to 85°C
  • Compliant to IEEE 802.3 100BASE-TX and 10BASE-Te specification
  • Ultra Small Form Factor 10/100Mbps PHY : QFN 3mm × 3mm, 24 pin
  • Cable reach up to 150 meters
  • Very low power consumption < 127mW
  • Integrated MDI and MAC termination resistors
  • Programmable energy saving modes
    • Active sleep
    • Deep power-down
    • Energy Efficient Ethernet (EEE) IEEE 802.3az
    • EEE support for legacy MAC
    • Wake-on-LAN (WoL)
  • Voltage mode line driver
  • MAC interface: RMII (leader and follower mode)
  • Single 3.3V power supply
  • I/O voltages: 1.8V and 3.3V
  • Repeater : RMII back-to-back mode in unmanaged mode
  • MDC/MDIO Interface for configuration and status
  • Fast link drop modes
  • Diagnostics tools: cable diagnostics, built-in self test (BIST), loopback modes
  • Programmable Hardware interrupt pin
  • Operating temperature range: –40°C to 85°C
  • Compliant to IEEE 802.3 100BASE-TX and 10BASE-Te specification

The DP83825I is an ultra small form factor, very low power Ethernet Physical Layer transceiver with integrated PMD sublayers to support 10BASE-Te, 100BASE-TX Ethernet protocols. The PHY supports up to 150 meters reach over CAT5e cable. The DP83825I interfaces directly to twisted pair media via an external transformer.

The DP83825I also supports Energy Efficient Ethernet, Wake-on-LAN and MAC isolation to further lower the system power consumption. Energy Efficient Mode can be enabled through register configuration for legacy MACs not supporting EEE signaling over MAC. DP83825I can operate in unmanaged repeater mode. In this mode, DP83825I works as a repeater without register configuration. The DP83825I offers integrated cable diagnostic tools, built-in self-test and loopback capabilities for ease of development and debug.

The DP83825I is an ultra small form factor, very low power Ethernet Physical Layer transceiver with integrated PMD sublayers to support 10BASE-Te, 100BASE-TX Ethernet protocols. The PHY supports up to 150 meters reach over CAT5e cable. The DP83825I interfaces directly to twisted pair media via an external transformer.

The DP83825I also supports Energy Efficient Ethernet, Wake-on-LAN and MAC isolation to further lower the system power consumption. Energy Efficient Mode can be enabled through register configuration for legacy MACs not supporting EEE signaling over MAC. DP83825I can operate in unmanaged repeater mode. In this mode, DP83825I works as a repeater without register configuration. The DP83825I offers integrated cable diagnostic tools, built-in self-test and loopback capabilities for ease of development and debug.
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功能相同，但針腳輸出與所比較的裝置不同。
DP83826E 現行 具有 MII 介面與強化模式的低延遲 10/100-Mbps PHY This product supports lower and more deterministic latency, with an extended temperature range of -40°C to 105°C
DP83826I 現行 具有工業溫度範圍、MII 介面和強化模式的低延遲 10/100 Mbps PHY This product supports lower and more deterministic latency, with an industrial temperature range of -40°C to 85°C

技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 DP83825I Low Power 10/100Mbps Ethernet Physical Layer Transceiver datasheet (Rev. C) PDF | HTML 2026/4/17
應用說明 DP83825 Troubleshooting Guide PDF | HTML 2025/9/9
應用說明 DP8382x IEEE 802.3u Compliance and Debug (Rev. B) PDF | HTML 2025/4/1
應用說明 DP838xx Wake-on-LAN (Rev. A) PDF | HTML 2024/3/4
應用說明 How to Pass IEEE Ethernet Compliance Tests PDF | HTML 2021/9/20
應用說明 How to Merge DP83825 On Linux Sitara AM335 Application Note (Rev. A) PDF | HTML 2021/8/31
應用說明 Ethernet PHY Configuration Using MDIO for Industrial Applications (Rev. A) 2021/5/7
技術文章 A history of industrial Ethernet protocols and their benefits PDF | HTML 2020/7/15
Application brief How Ethernet's Long Cable Reach Benefits Building Automation 2020/6/29
技術文章 SimpliPHY your Ethernet design, part 1: Ethernet PHY basics and selection process PDF | HTML 2020/3/11
應用說明 Solving Cable Faults Challenges with TI Ethernet PHYs (Rev. A) 2020/1/10
技術文章 Top 3 considerations for harsh industrial Ethernet PDF | HTML 2019/11/4
應用說明 How to Use Energy Efficient Ethernet (IEEE 802.3az) With Texas Instruments 2019/10/7
技術文章 Low power, big impact: Low-power Ethernet PHYs for building automation PDF | HTML 2019/2/21
應用說明 Selection and specification of crystals for Texas Instruments ethernet physical 2019/2/6
技術文章 Two ways to save power with low-power Ethernet PDF | HTML 2016/11/17
技術文章 How to select the right industrial Ethernet standard: EtherCAT PDF | HTML 2015/9/17
技術文章 How Ethernet technology is shifting modern markets 40 years after its inception PDF | HTML 2015/7/27
技術文章 Three things you should know about Ethernet PHY PDF | HTML 2015/7/15

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

DP83825EVM — 小型 10/100 乙太網路 PHY 評估模組

DP83825EVM 讓設計人員能評估業界最小尺寸的 10BASE-Te/100BASE-TX 乙太網路實體層收發器 DP83825I PHY。此評估模組 (EVM) 可讓設計人員使用兩種介面之一：透過 RJ-45 連接器的網路介面以及透過簡單多針腳連接器的 MAC 介面。EVM 可透過 USB 連接並使用 USB-2-MDIO 簡易軟體工具進行配置和控制。EVM 支援互通性測試、合規性測試和 BER 測試。EVM 也支援 10BASE-Te 和 100BASE-TX 乙太網路通訊協定，並具備連接至 DP83825i RMII 接腳的接頭針腳。

使用指南: PDF | HTML
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開發模組 (EVM) 的 GUI

DIEP — Debug Interface for Ethernet PHYs (DIEP)

德州儀器乙太網路實體層 (PHY) 收發器的驅動程式支援透過序列管理介面 (MDC/MDIO) 進行通訊，以配置及讀取 PHY 暫存器。如需 Linux 和 RTOS 驅動程式，請前往我們的 github。

 

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支援軟體

USB-2-MDIO — USB-2-MDIO Tool v1.0

USB-2-MDIO 軟體工具可讓德州儀器的乙太網路 PHY 存取 MDIO 狀態和裝置控制暫存器。  USB-2-MDIO 工具包括 LaunchPad™ 開發套件，適用於與輕型 GUI 連接的 TI MSP430™ MCU。  LaunchPad 開發套件實作 MDIO 匯流排控制器，可處理連接匯流排之 PHY 上的暫存器。

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模擬型號

DP83825 IBIS Model

SNLM226.ZIP (26 KB) - IBIS 模型
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參考設計

TIDA-010046 — 配備 IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD 且符合 EMC 規範的 10/100-Mbps 乙太網路 PHY 參考設計

此參考設計使用低功耗乙太網路實體層 (PHY) DP83825 最佳化爲 10 至 100 Mbps，支援超過 CAT5e 電纜的 150 公尺長範圍，超出了 100 公尺 (328 英尺) 的標準乙太網路距離限制。此設計包含乙太網路纜線供電，並使用 IEEE802.3at Type-1 (13 W) PoE-PD TPS23755 裝置進行數據通訊，而此裝置具有整合式一次側穩壓返馳 DC/DC 控制器。此參考設計預先符合輻射放射、ESD 及 EFT 的測試規範。

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