Texas Instruments DP83825I 10/100Mbps Ethernet PHY Transceiver
Texas Instruments DP83825I Low Power 10/100Mbps Ethernet Physical Layer Transceiver is an ultra-small form factor, very low power Ethernet Physical Layer transceiver. This device has integrated PMD sublayers to support 10BASE-Te and 100BASE-TX Ethernet protocols. The DP83825I supports up to 150 meters of reach over CAT5e cable. The device interfaces directly to twisted pair media via an external transformer. It interfaces to the MAC layer through Reduced MII (RMII) both in Master and Slave mode. It provides a 50MHz output clock in RMII Master Mode. This clock is synchronized to MDI derived clock to reduce the jitter in the system.
The Texas Instruments DP83825I also supports Energy Efficient Ethernet, Wake-on-LAN, and MAC isolation to further lower 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 easy development and debugging.
Features
- Ultra Small Form Factor 10/100Mbps PHY: QFN 3mm x 3mm, 24 pin
- Cable reach > 150 meters
- Very low power consumption < 127mW
- Small system solution: 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 (master and slave mode)
- Single 3.3V power supply
- 1.8V and 3.3V I/O voltages
- Repeater: RMII back-to-back modes in unmanaged mode
- MDC/MDIO Interface for configuration and status
- Fast link drop modes
- Diagnostics features
- TDR-based cable diagnostics for open, short
- Built-in packet generator
- Multiple loopbacks
- Programmable Hardware interrupt pin
- –40°C to 85°C operating temperature range
- Compliant with IEEE 802.3 100BASE-TX and 10BASE-Te specification
Applications
- Building automation: IP camera, HMI
- Consumer electronics: STB, OTT, IPTV, game consoles
- Printers
- Electronic point of sale
- Factory automation
Application Diagram
Related Development Tools
Texas Instruments DP83825EVM PHY Evaluation Module (EVM)
Evaluates small form-factor, 10BASE-Te/100BASE-TX Ethernet physical layer transceiver, DP83825I.
Publicado: 2019-10-04
| Actualizado: 2023-11-14