Gigabit Ethernet Transceiver

The TLK2201 gigabit ethernet transceiver provides for high-speed full-duplex point-to-point data transmissions. The device is based on the timing requirements of the 10-bit interface specification by the IEEE 802.3 Gigabit Ethernet specification. The primary application of this device is to provide building blocks for point-to-point baseband data transmission over controlled impedance media of 50 or 75 . The transmission media can be printed-circuit board 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 to the environment.

The device performs the data serialization, deserialization, and clock extraction functions for a physical layer interface device. The transceiver operates at 1.25 Gbps (typical) providing up to 1 Gbps of data bandwidth over a copper or optical media interface. It supports both the defined 10-bit interface (TBI) and a reduced 5-bit interface utilizing double data rate (DDR) clocking.

It is housed in a thermally enhanced, 64-pin VQFP PowerPAD package. It is recommended that the package be soldered to the thermal land on the board. The device is characterized for operation from 0°C to 70°C. It uses a 2.5-V supply. The I/O section is 3.3-V compatible. It is designed to be hot plug capable. A power-on reset causes RCB0, RCB1, the parallel output signal terminals, TXP, and TXN to be held in high-impedance state.

Features
• 1 to 1.6 Gigabits Per Second (Gbps) Serializer/Deserializer
• Low Power Consumption <200 mW at 1.25 Gbps
• LVPECL Compatible Differential I/O on High Speed Interface
• Receiver Differential Input Thresholds 200 mV Minimum
• IEEE 802.3 Gigabit Ethernet Compliant
• Advanced 0.25 um CMOS Technology
• No External Filter Capacitors Required
• Comprehensive Suite of Built-In Testability
• IEEE 1149.1 JTAG port is supported

Texas Instruments, P. O. Box 954, Santa Clara, CA 91380. Tel: 1-800-477-8924; Fax: 214-480-7800.