2.5GBASE-T Transceiver

A single port, four speed (10 M/100 M/1 G/2.5 G) Ethernet PHY transceiver

The QCA8081 supports six different Ethernet protocols: 10BASE-Te half-duplex, 10BASE-Te full-duplex, 100BASE-TX half-duplex, 100BASE-TX full-duplex, 1000BASE-T full-duplex, and 2500BASE-T fullduplex. The QCA8081 provides physical layer functions to transmit and receive data over standard Category 5 (Cat5) or Category 6 (Cat6) unshielded twisted-pair cables. The QCA8081 includes one SerDes, which can work as 1.25 G SGMII or 3.125 G SGMII+ for connection with MAC.

The QCA8081 integrates Green ETHOS? power-saving technologies, which significantly save power in both active operation and idle condition. Green ETHOS power-saving schemes include ultralow power in cable unplugged mode or port power-down mode. The QCA8081 supports standard IEEE 802.3az Energy Efficient Ethernet (EEE) for 10BASE-Te, 100BASE-TX, and 1000BASE-T.

• Clock synchronization between slave and master by the exchange of PTP packets. Supports IEEE 1588 V2 by offering a packet parser, accurate timestamping, and insertion to support both onestep and two-step clock modes.

• Supports synchronous Ethernet by offering clock output recovered from received data on the network-line side. The QCA8081 supports MACsec, which is defined by IEEE 802.1AE to offer hop-by-hop link layer security based on symmetric key AES-GCM encryption and authentication.

• Complete inline processing without software intervention in the data path

• IEEE 802.1AE standard compliant

• Robust Electro-Static Discharge (ESD) protection without external protection circuit

• Fully integrated digital adaptive equalizers, echo cancelers, and Near End Crosstalk (NEXT) cancelers

• Transmit and receive functions:

• Automatic Channel Swap (ACS)

• Automatic MDI/MDIX crossover

• Automatic polarity correction

• Management interface supports 1.8 V I/O voltage

• 1.05 V and 1.8 V power supplies for reduced power operation

• 50 MHz crystal/differential clock/single-ended clock

• Green ETHOS? power-saving modes

• Power saving at media disconnected state

• Low-power mode

• ESD

• Robust Electro-Static Discharge (ESD) protection without external protection circuit

• Robust lightening surge protection without external protection circuit

• Ordinary, boundary, transparent, and grandmaster clock mode

• Multiple loopback modes for diagnostics

• Cable Diagnostic Test (CDT)

• CRC checker and packet counter

• 1.05 V and 1.8 V power supplies for reduced power operation

QCA8081+2G5YT005+RJ45