TLK3114SB

The TLK3114SB device is a flexible quad serial transceiver, delivering high-speed, bidirectional, point-to-point data transmissions to provide up to 10 Gbps of data transmission capacity. The TLK3114SB device is terminal compatible with the TLK3104SA quad serial transceiver and supports an operating range of serial data rates from 2.5 Gbps to
3.125 Gbps. The primary application of this device is to provide building blocks for developing point-to-point baseband data transmission over controlled impedance media of approximately 50 . The transmission media can be printed-circuit board (PCB) traces, copper cables, or fiber-optical media. The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise coupling into the lines.

The TLK3114SB device performs the parallel-to-serial, serial-to-parallel conversion, and clock extraction functions for a physical layer interface. The TLK3114SB device also provides a selectable 8-b/10-b encode/decode function. The serial transmitter is implemented using differential pseudoemitter controlled logic (PECL) compatible signaling called voltage mode logic (VML) that eliminates the need for external components. The serial receiver employs an equalization circuit to maximize receive capabilities.

The four transceivers in the TLK3114SB device can be configured as either four separate links or synchronized together as a single data path. The TLK3114SB device supports both the 32-bit data path, 4-bit control, 10-gigabit media independent interface (XGMII), and the extended auxiliary unit interface (XAUI) specified in the IEEE 802.3ae 10-Gigabit Ethernet standard. Figure 11 shows an example system block diagram for the TLK3114SB device used as an XGMII extended sublayer (XGXS) device to provide an additional trace distance on PCB for data being transferred between the switching fabric and optical transceiver modules.