TNETE2101 10BASE-T/100BASE-TX/100BASE-FX LOW-POWER PHYSICAL-LAYER INTERFACE

SPWS032A - JANUARY 1997 - REVISED DECEMBER 1997

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features

Highly Integrated, Single-Chip, Ethernet^TM Physical-Layer (PHY) Interface for Full-Duplex or Half-Duplex Connection to 10BASE-T, 100BASE-T, and 100BASE-FX Networks
Low-Power 3.3-V CMOS Design With Power-Down Capability for CardBus and Other Applications Requiring Low Power
Integrated Transmit Filtering and Receive Equalization Provide for Minimal External Component Count to Reduce System Cost
10BASE-T and 100BASE-TX Connection Supported With a Magnetics Package and an RJ-45 Connector
DSP-Based Digital Phase-Locked Loop (PLL) Technology Allows Outstanding Data Recovery at 10 Mbit/s and 100 Mbit/s, While Requiring Only a Single 20-MHz Clock Reference Source
10BASE-T Features
- Fully Compliant With IEEE Std 802.3
- Smart Squelch for Improved Noise Immunity
- Integrated Transmit Wave Shaping
- Auto-Polarity (Reverse-Polarity Correction)
- Transmit Jabber Detection
100BASE-TX Features:
- Fully Compliant With ANSI Twisted-Pair Physical-Media-Dependent (TP-PMD) Standard and IEEE Std 802.3
- Synthesized Rise-Time Control for Reduced Electromagnetic Interference (EMI)
- Integrated Receiver With Adaptive Line Equalization and Baseline Wander (BLW) Correction (DC Restoration)
IEEE Std 802.3-Compliant Media-Independent Interface (MII) That Includes Management Interface
IEEE Std 802.3-Compliant Autonegotiation (N-Way) With Next-Page Support
Packaged in 100-Terminal Thin Quad Flatpack Ethernet is a registered trademark of Xerox Corporation.

description

The TNETE2101 PHY device from Texas Instruments (TI^TM) is a single-chip, high-performance solution for a range of 10BASE-T, 100BASE-TX, and 100BASE-FX networking systems (see Figure 1). The highly integrated TNETE2101 includes an on-board media-independent interface (MII) for simple connection to IEEE Std 802.3-compliant media-access controls (MACs). The device integrates all filtering and rise-time control functions for a cost-effective and space-saving PHY solution. To implement this solution, designers need an isolation transformer and an RJ-45 connector to support either speed requirement. Built-in autonegotiation allows automatic selection of half-/full-duplex 10BASE-T or 100BASE-TX, while an auto-polarity correction feature ensures immunity to receive-pair reversal.

Title: 10 BASE-T, 100 BASE-TX, 100 BASE-FX PHY PHYSICAL-LAYER INTERFACE
Product Family: NETWORKING COMPONENTS
Device Functionality: ETHERNET SWITCHING

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