General Description
The VSC7139 is a full-speed Quad Fibre Channel and Gigabit Ethernet Transceiver IC. Each of the four transmitters has a 10-bit wide bus, running up to 136MHz, which accepts 8B/10B encoded transmit characters and serializes the data onto high speed differential outputs at speeds up to 1.36Gb/s.
   
Features
• Four Complete Transmitter/ Receiver Functions
    in a Single Integrated Circuit
• Full Fibre Channel (T11) and Gigabit Ethernet
    (IEEE 802.3z) Compliance
• 1.05Gb/s to 1.36Gb/s Operation per Channel
• Common or Per-Channel Transmit Byte Clocks
• TTL or PECL Reference Clock Input
• 1/10th or 1/20th Baud Rate Recovered Clocks
• Common and Per-Channel, Serial and Parallel Loopback Controls
• Common Comma Detect Enable Inputs
• Per-Channel Comma Detect Outputs
• Cable Equalization in Receivers
• Automatic Lock-to-Reference
• 3.3V Power Supply, 2.67 W Max Power
    Dissipation
• 208-Pin, 23mm BGA Packaging