TRC3104SBA is a Quad SerDes transceiver device, capable of transmitting 1.06 to 3.125Gb/s signals over Backplane, Fiber Channel, and cupper cables. It uses single and double data rate capability. One 1.8V supply can power the core and I/Os. It has Comma detector, low jitter clock synthesizer, 8B/10B converter, selectable pre-emphasis and equalizer, CDR PLL, BIST and loopback functions for testing, and needs only 3 external resistors for setting bias current. It is also available as core (named TRC3104CBA).