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DP83846 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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DP83846 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 59 page  © 2000 National Semiconductor Corporation www.national.com Preliminary April 2000 DP83846A DsPHYTER ® — Single 10/100 Ethernet Transceiver General Description The DP83846A is a full feature single Physical Layer device with integrated PMD sublayers to support both 10BASE-T and 100BASE-TX Ethernet protocols over Cat- egory 3 (10 Mb/s) or Category 5 unshielded twisted pair cables. The DP83846A is designed for easy implementation of 10/100 Mb/s Ethernet home or office solutions. It interfaces to Twisted Pair media via an external transformer. This device interfaces directly to MAC devices through the IEEE 802.3u standard Media Independent Interface (MII) ensur- ing interoperability between products from different ven- dors. The DP83846A utilizes on chip Digital Signal Processing (DSP) technology and digital Phase Lock Loops (PLLs) for robust performance under all operating conditions, enhanced noise immunity, and lower external component count when compared to analog solutions. System Diagram PHYTER® and TRI-STATE® are registered trademarks of National Semiconductor Corporation. Status 10BASE-T or 100BASE-TX MII 25 MHz Typical DsPHYTER application Ethernet MAC RJ-45 Clock LEDs DP83846A 10/100 Mb/s DsPHYTER Features s IEEE 802.3 ENDEC, 10BASE-T transceivers and filters s IEEE 802.3u PCS, 100BASE-TX transceivers and filters s IEEE 802.3 compliant Auto-Negotiation s Output edge rate control eliminates external filtering for Transmit outputs s BaseLine Wander compensation s 5V/3.3V MAC interface s IEEE 802.3u MII (16 pins/port) s LED support (Link, Rx, Tx, Duplex, Speed, Collision) s Single register access for complete PHY status s 10/100 Mb/s packet loopback BIST (Built in Self Test) s Low-power 3.3V, 0.35um CMOS technology s 5V tolerant I/Os s 80-pin LQFP package (12w) x (12l) x (1.4h) mm |
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