TLK1201A - 具有半速率选项的千兆以太网收发器

TLK1201A是TI德州仪器公司的一款1G-40G以太网/光纤通道收发器产品，TLK1201A是具有半速率选项的千兆以太网收发器，本站介绍了TLK1201A的封装应用图解、特点和优点、功能等，并给出了与TLK1201A相关的TI元器件型号供参考。

TLK1201A - 具有半速率选项的千兆以太网收发器 - 1G-40G以太网/光纤通道收发器 - 串行器、解串器 - 德州仪器

产品描述

The TLK1201A/TLK1201AI gigabit ethernet transceiver provides for ultrahigh-speed, full-duplex, point-to-point data transmissions. This device is based on the timing requirements of the 10-bit interface specification by the IEEE 802.3 gigabit ethernet specification and is also compliant with the ANSI X3.230-1994 (FC-PH) fibre channel standard. The device supports data rates from 0.6 Gbps to 1.3 Gbps.

The primary application of the transceiver is to provide building blocks for point-to-point baseband data transmission over controlled impedance media of 50 . 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 transceiver 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.

The transceiver supports both the defined 10-bit interface (TBI) and a reduced 5-bit interface utilizing double data rate (DDR) clocking. In the TBI mode the serializer/deserializer (SERDES) accepts 10-bit wide 8b/10b parallel encoded data bytes. The parallel data bytes are serialized and transmitted differentially at PECL compatible voltage levels. The SERDES extracts clock information from the input serial stream and deserializes the data, outputting a parallel 10-bit data byte.

In the DDR mode the parallel interface accepts 5-bit wide 8b/10b encoded data aligned on both the rising and falling edges of the reference clock. The data is clocked most significant bit first (bits 0-4 of the 8b/10b encoded data) on the rising edge of the clock and the least significant bits (bits 5-9 of the 8b/10b encoded data) are clocked on the falling edge of the clock.

The transceiver provides a comprehensive series of built-in tests for self-test purposes including loopback and pseudorandom binary sequence (PRBS) generation and verification. An IEEE 1149.1 JTAG port is also supported.

The transceiver is housed in a high-performance, thermally enhanced, 64-pin VQFP PowerPAD package. Use of the PowerPAD package does not require any special considerations except to note that the PowerPAD, which is an exposed die pad on the bottom of the device, is a metallic thermal and electrical conductor. It is recommended that the device PowerPAD be soldered to the thermal land on the board.

The transceiver is characterized for operation from 0°C to 70°C (TLK1201A) or -40°C to 85°C (TLK1201AI).

The transceiver uses a 2.5-V supply. The I/O section is 3.3-V compatible. With a 2.5-V supply the chipset is very power-efficient, dissipating less than 200 mW typical power when operating at 1.25 Gbps.

The transceiver is designed to be hot plug capable. A power-on reset causes RBC0, RBC1, the parallel output signal terminals, TXP, and TXN to be held in a high-impedance state.

产品特性

0.6-Gbps to 1.3-Gbps Serializer/Deserializer
Low Power Consumption <200 mW at 1.25 Gbps
LVPECL Compatible Differential I/O on High Speed Interface
Single Monolithic PLL Design
Support For 10-Bit Interface or Reduced Interface 5-Bit DDR(Double Data Rate) Clocking
Receiver Differential Input Thresholds 200 mV Minimum
IEEE 802.3 Gigabit Ethernet Compliant
ANSI X3.230-1994 (FC-PH) Fibre Channel Compliant
Advanced 0.25-µm CMOS Technology
No External Filter Capacitors Required
Comprehensive Suite of Built-In Testability
IEEE 1149.1 JTAG Support
2.5-V Supply Voltage for Lowest Power Operation
3.3-V Tolerant on LVTTL Inputs
Hot Plug Protection
64-Pin VQFP With Thermally Enhanced Package (PowerPAD™)
CPRI Data Rate Compatible (614 Mbps, 1.22 Gbps)
Industrial Temperature Range Supported: -40°C to 85°C

PowerPAD is a trademark of Texas Instruments.

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