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DP83846A

National Semiconductor
Part Number DP83846A
Manufacturer National Semiconductor
Description DsPHYTER -Single 10/100 Ethernet Transceiver
Published Mar 7, 2006
Detailed Description DP83846A DsPHYTER — Single 10/100 Ethernet Transceiver May 2002 DP83846A DsPHYTER — Single 10/100 Ethernet Transceiver...
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DP83846A
DP83846A


Overview
DP83846A DsPHYTER — Single 10/100 Ethernet Transceiver May 2002 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 Category 3 (10 Mb/s) or Category 5 Unsheilded 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) ensuring interoperability between products from different vendors.
Features ■ ■ ■ ■ IEEE 802.
3 ENDEC, 10BASE-T transceivers and filters IEEE 802.
3u PCS, 100BASE-TX transceivers and filters IEEE 802.
3 compliant Auto-Negotiation Output edge rate control eliminates external filtering for Transmit outputs BaseLine Wander compensation 5V/3.
3V MAC interface IEEE 802.
3u MII (16 pins/port) LED support (Link, Rx, Tx, Duplex, Speed, Collision) Single register access for complete PHY status 10/100 Mb/s packet loopback BIST (Built in Self Test) Low-power 3.
3V, 0.
35um CMOS technology Power consumption < 495mW (typical) 5V tolerant I/Os 80-pin LQFP package (12w) x (12l) x (1.
4h) mm ■ ■ ■ ■ ■ 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.
■ Applications ■ Network Interface Cards ■ PCMCIA Cards System Diagram Magnetics DP83846A Ethernet MAC MII 10/100 Mb/s DsPHYTER RJ-45 10BASE-T or 100BASE-TX 25 MHz Clock Status LEDs Typical DsPHYTER application ©2002 National Semiconductor Corporation www.
national.
com DP83846A MII HARDWARE CONFIGURATION PINS (AN_EN, AN0, AN1) (PAUSE_EN) (LED_CFG, PHYAD) RXD[3:0] TXD[3:0] MDIO MII INT...


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