Product Summary

The DP83902AVLJ Serial Network Interface Controller for Twisted Pair (ST-NIC) is a microCMOS VLSI device designed for easy implementation of CSMA/CD local area networks. These include Ethernet (10BASE5), Thin Ethernet (10BASE2) and Twisted-pair Ethernet (10BASE-T). The overall ST-NIC solution provides the Media Access Control (MAC) and Encode-Decode (ENDEC) with an AUI interface, and 10BASE-T transceiver functions in accordance with the IEEE 802.3 standards. The DP83902AVLJ 10BASE-T transceiver fully complies with the IEEE standard. This functional block incorporates the receiver, transmitter, collision, heartbeat, loopback, jabber, and link integrity blocks as defined in the standard. The transceiver when combined with equalization resistors, transmit/receive filters, and pulse transformers provides a complete physical interface from the DP83902AVLJ ENDEC module and the twisted pair medium.

Parametrics

DP83902AVLJ absolute maximum ratings: (1)Supply Voltage (VCC): -0.5V to 7.0V; (2)DC Input Voltage (VIN): -0.5V to VCC + 0.5V; (3)DC Output Voltage (VOUT): -0.5V to VCC + 0.5V; (4)Storage Temperature Range (TSTG): -65℃ to +150℃; (5)Power Dissipation (PD): 800 mW; (6)Lead Temp. (TL) (Soldering, 10 sec.): 260℃; (7)ESD Rating (RZAP = 1.5k, CZAP = 100 pF): 1.5 kV; (8)Clamp Diode Current: ±20 mA.

Features

DP83902AVLJ features: (1)Single chip solution for IEEE 802.3, 10BASE-T; (2)Integrated controller, ENDEC, and transceiver; (3)Full AUI interface; (4)No external precision components required; (5)3 levels of loopback supported; (6)10 Mb/s Manchester encoding/decoding, plus clock recovery; (7)Transmitter half or full step mode; (8)Squelch on receive and collision pairs; (9)Lock time 5 bits typical; (10)Decodes Manchester data with up to ±18 ns jitter; (11)100% DP8390 software/hardware compatible; (12)Dual 16-bit DMA channels; (13)16-byte internal FIFO; (14)Efficient buffer management implementation; (15)Independent system and network clocks; (16)Supports physical, multicast and broadcast address filtering; (17)Network statistics storage.

Diagrams

DP83902AVLJ system diagram

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