产品应用与封装尺寸
图纸取自原厂规格书，点击可放大查看原始尺寸标注。
引脚定义与内部结构
| 引脚 | 符号 | 名称 |
|---|---|---|
| 47 | IOGND | |
| 8 | TCK | |
| 9 | TDO | |
| 10 | TMS | |
| 12 | TDI | |
| 13 | RD - | |
| 14 | RD + | |
| 15 | AGND | |
| 16 | TD - | |
| 17 | TD + | |
| 19 | AGND | |
| 20 | RESERVED | |
| 21 | RESERVED | |
| 23 | PFBOUT | |
| 24 | RBIAS | |
| 30 | MDIO | |
| 31 | MDC | |
| 33 | X2 | |
| 34 | X1 | |
| 35 | IOGND | |
| 36 | DGND | |
| 32 | clocks |
数据来源：原厂规格书引脚图
产品特点 Features
- port Physical Layer device offering low power con- sumption, including several intelligent power down states. These low power modes increase overall prod-
- Industrial
- Low power consumption < 270mW Typical
- 3.3V MAC Interface
- Auto-MDIX for 10/100 Mb/s
- The DP83848I is a robust fully featured 10/100 single port Physical Layer device offering low power con- sumption, including several intelligent power down states. These low power modes increase overall prod-
- I84838PD
- MII/RMII/SNI
- VD_SRC/SRC
- SERIAL
- MANAGEMENT
- KLC_XT ]0:3[DXT ]0:3[DXR KLC_XR
- NE_XT RE_XR VD_XR
- OIDM LOC
- MII/RMII/SNI INTERFACES
- TX_DATA TX_CLK RX_CLK RX_DATA
绝对最大额定值 Absolute Maximum Ratings（TA = 25°C）
超过下表数值可能造成器件永久损坏，设计时请留余量。
| 符号 | 引脚 | 型号 | 参数 | 条件 | 最小 | 典型 | 最大 | 单位 |
|---|---|---|---|---|---|---|---|---|
| DP83848I | ||||||||
| V | PMD | Output | 100M Transmit | 0.95 | 1 | 1.05 | V | |
| V | PMD | Output | 100M Transmit | + 2 | % | |||
| V | PMD | Output | 10M Transmit | 2.2 | 2.5 | 2.8 | V | |
| C | I | CMOS Input | 5 | pF | ||||
| C | O | CMOS Output | 5 | pF | ||||
| SD | PMD | Input | 100BASE-TX | 1000 | mV diff pk-pk | |||
| SD | PMD | Input | 100BASE-TX | 200 | mV diff pk-pk | |||
| V | PMD | Input | 10BASE-T Re- | 585 | mV | |||
| I | Supply | 100BASE-TX | 81 | mA | ||||
| I | Supply | 10BASE-T | 92 | mA | ||||
| I | Supply | Power Down | 14 | mA |
数据来源：原厂规格书
电气特性 Electrical Characteristics（TA = 25°C）
| 符号 | 引脚 | 型号 | 参数 | 条件 | 最小 | 典型 | 最大 | 单位 |
|---|---|---|---|---|---|---|---|---|
| DP83848I | ||||||||
| V | PMD | Output | 100M Transmit | 0.95 | 1 | 1.05 | V | |
| V | PMD | Output | 100M Transmit | + 2 | % | |||
| V | PMD | Output | 10M Transmit | 2.2 | 2.5 | 2.8 | V | |
| C | I | CMOS Input | 5 | pF | ||||
| C | O | CMOS Output | 5 | pF | ||||
| SD | PMD | Input | 100BASE-TX | 1000 | mV diff pk-pk | |||
| SD | PMD | Input | 100BASE-TX | 200 | mV diff pk-pk | |||
| V | PMD | Input | 10BASE-T Re- | 585 | mV | |||
| I | Supply | 100BASE-TX | 81 | mA | ||||
| I | Supply | 10BASE-T | 92 | mA | ||||
| I | Supply | Power Down | 14 | mA |
特性曲线（Typical Performance Curves）
