QT2225-1

Dual SFI-to-XAUI PHY for SFP+ Based 10GBASE-SR/LR/LRM and Twinax Copper 10GBASE-CX Applications

Benefits

A low-power 1/10 Gbps Ethernet PHY with fully adaptive electronic dispersion compensation (EDC). The PHY can be used in optical XFP, SFP+, and copper 10GBASE-CX Twinax or 10GBASE-KR backplane applications.

In SFP+ applications, the QT2225 supports 10GBASE-SR/LR/ER and Twinax copper cable 10GBASE-CX applications. The QT2225-1 utilizes the built-in industry-leading EDC circuitry and also includes 10GBASE-LRM support.

When designing for SFP+ applications, customers can generate one dual-rate design that supports SFP+ modules (10GBASE-R) and SFP modules (1000BASE-X).

In the receive direction, the device uses a sophisticated EDC engine that continuously adapts itself to the channel characteristics providing an optimum level of performance regardless of environmental conditions.

In the transmit direction, the 10 Gbps driver utilizes signal equalization to compensate for degradation due to copper traces and connectors in the signal path.

Features

• 1G/10GE LAN/WAN and 1G/10GFC SAN
• SFP+ modules: 10GBASE-SR/LR/ER, 10GBASE-LRM (QT2225-1 only) and Twinax copper cable
• Backplane: 1000BASE-KX, 10GBASE-KR
• Advanced EDC engine with auto tap weight adjustment and tracking
• SFI transmit wave shaping
• XAUI interface with equalization and transmit wave shaping
• Integrated loopbacks and test features
• Compliant to applicable IEEE and INCITS specifications