TM Cortina Systems LXT971A Single-Port 10/100 Mbps PHY Transceiver Datasheet The Cortina Systems LXT971A/972A/972M Single-Port 10/100 Mbps PHY Transceiver (LXT971A PHY) directly supports both 100BASE-TX and 10BASE-T applications. It provides a Media Independent Interface (MII) for easy attachment to 10/100 Media Access Controllers (MACs). The LXT971A PHY is IEEE compliant, and provides a Low Voltage Positive Emitter Coupled Logic (LVPECL) interface for use with 100BASE-FX fiber networks. The LXT971A PHY supports full-duplex operation at 10 Mbps and 100 Mbps. Operating conditions for the LXT971A PHY can be set using auto-negotiation, parallel detection, or manual control. The LXT971A PHY is fabricated with an advanced CMOS process and requires only a single 2.5/3.3 V power supply. (This Datasheet also supports the LXT971 PHY.) Applications Combination 10BASE-T/100BASE-TX or 10/100 Mbps PCMCIA cards 100BASE-FX Network Interface Cards (NICs) Cable Modems and Set-Top Boxes Network printers Product Features 3.3 V Operation Carrier Sense Multiple Access / Collision Detection (CSMA/CD) or full-duplex operation Low power consumption (300 mW typical) JTAG boundary scan Low-power Sleep mode MDIO serial port or hardware pin configurable 10BASE-T and 100BASE-TX using a single RJ-45 connection 100BASE-FX fiber-optic capable IEEE 802.3-compliant 10BASE-T or Integrated, programmable LED drivers 100BASE-TX ports with integrated filters 64-ball Plastic Ball Grid Array (PBGA) or 64-pin Auto-negotiation and parallel detection Quad Flat Package (LQFP) MII interface with extended register capability LXT971ABC - Commercial (0 to 70 C amb.) Robust baseline wander correction LXT971ABE - Extended (-40 to 85 C amb.) LXT971ALC - Commercial (0 to 70 C amb.) LXT971ALE - Extended (-40 to 85 C amb.) LXT972ALC - Commercial (0 to 70 C amb.) 249414, Revision 5.4LXT971A PHY Legal Disclaimers Datasheet 249414, Revision 5.4 14 October 2011 INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH CORTINA SYSTEMS PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN CORTINAS TERMS AND CONDITIONS OF SALE OF SUCH PRODUCTS, CORTINA ASSUMES NO LIABILITY WHATSOEVER, AND CORTINA DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO THE SALE AND/OR USE OF CORTINA PRODUCTS, INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. Cortina products are not intended for use in medical, life saving, life sustaining, critical control or safety systems, or in nuclear facility applications. CORTINA SYSTEMS , CORTINA, and the Cortina Earth Logo are trademarks or registered trademarks of Cortina Systems, Inc. or its subsidiaries in the US and other countries. Any other product and company names are the trademarks of their respective owners. Copyright 2004 2011 Cortina Systems, Inc. All rights reserved. Cortina Systems LXT971A Single-Port 10/100 Mbps PHY Transceiver Page 2