DP83825IRMQT

The DP83825I is an ultra-low-power Ethernet physical layer transceiver with an ultra-small size. It integrates the PMD sub-layer and supports the 10BASE-Te and 100BASE-TX Ethernet protocols. This transceiver supports CAT5e cables up to 150 meters in length. The DP83825I is directly connected to the twisted-pair medium through an external transformer. In the master-slave mode, this device is connected to the MAC layer through the simplified MII (RMII). In the RMII master mode, it provides a 50MHz output clock. This output clock is synchronized with the MDI-derived clock to reduce system jitter. The DP83825I also supports Energy-Efficient Ethernet (EEE), Wake-on-LAN (WoL), and MAC isolation to further reduce system power consumption. For traditional MACs that do not support sending EEE signals through the MAC, the energy-saving mode can be enabled by configuring the registers. The DP83825I can operate in the unmanaged repeater mode. In this mode, the DP83825I operates as a repeater without the need to configure the registers. To facilitate development and debugging, the DP83825I provides an integrated cable diagnostic tool, built-in self-test, and loopback functions.

Applications

• Building automation: IP cameras, HMI
• Consumer electronics: STB, OTT, IPTV, gaming consoles
• Printers
• Electronic point-of-sale terminals
• Factory automation

Key features

• Ultra-small 10/100Mbps PHY: QFN 3mm × 3mm, 24-pin
• Ultra-low power consumption <127mW
• Compact system solution: integrated MDI and MAC termination resistors
• Programmable power-saving modes: Active Sleep, Deep Power-Down, Energy Efficient Ethernet (EEE) IEEE 802.3az, EEE support for legacy MACs, Wake-on-LAN (WoL)
• Voltage-mode line driver
• MAC interface: RMII (master/slave mode), 3.3V single supply, I/O voltage: 1.8V and 3.3V
• Repeater: RMII back-to-back mode in unmanaged mode
• MDC/MDIO interface for configuration and status
• Fast Link Drop mode
• Diagnostic features: TDR-based open/short cable diagnostics, built-in packet generator, multiple loopback paths
• Programmable hardware interrupt pin
• Operating temperature range: -40°C to 85°C
• Compliant with IEEE 802.3 100BASE-TX and 10BASE-Te specifications