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DP83910A
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MFG:NS Package Cooled:PLCC D/C:1

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Part Number: DP83910A

MFG: NS

Package Cooled: PLCC

D/C: 1

Description: The DP83910A CMOS Serial Network Interface (SNI) is a direct-pin equivalent of the bipolar DP8391 SNI and provides the ...

DP83910A General Description

The DP83910A CMOS Serial Network Interface (SNI) is a direct-pin equivalent of the bipolar DP8391 SNI and provides the Manchester data encoding and decoding functions for IEEE 802.3 Ethernet/Thin-Ethernet type local area networks. The SNI interfaces the DP8390 Network Interface Controller (NIC) to the DP8392 CTI or an Ethernet transceiver cable. When transmitting, the SNI converts non-return-tozero (NRZ) data from the controller into Manchester data and sends the converted data differentially to the transceiver. Conversely, when receiving, a Phase Lock Loop decodes the 10 Mbit/s data from the transceiver into NRZ data for the controller.

The DP83910A operates in conjunction with the DP8392 Coaxial Transceiver Interface (CTI) and the DP8390 Network Interface Controller (NIC) to form a three-chip set that implements a complete IEEE 802.3 compatible network as shown below. The DP83910A is a functionally complete Manchester encoder/decoder including a balanced driver and receiver, on-board crystal oscillator, collision signal translator, and a diagnostic loopback feature. TheDP83910A, fabricated CMOS, typically consumes less than 70 mA of current. However, as a result of being CMOS, the DP83910A's differential signals must be isolated in both Ethernet and thin wire Ethernet.

DP83910A Maximum Ratings

Supply Voltage (VCC)                                   -0.5V to +7V
DC Input Voltage (VIN)                       -0.5V to VCC +0.5V
DC Output Voltage (VOUT)                 -0.5V to VCC +0.5V
Differential Input Voltage                               -5.5 to a16V
Differential Output Voltage                                   0 to 16V
Power Dissipation                                                500 mW
Storage Temperature                              -65 to a150
Lead Temperature (Soldering, 10 sec.)                     260
ESD (RZAP e 1.5 kX, CZAP e 120 pF)                      ±2 kV
                                                                 (Pin 4 e 1.5 kV)

DP83910A Features

· Compatible with Ethernet I, IEEE 802.3; 10BASE5, 10BASE2, and 10BASE-T
· Designed to interface with 10BASE-T transceivers
· Functional and pin-out duplicate of the DP8391
· 10 Mbits/s Manchester encoding/decoding with receive clock recovery
· Requires no precision components
· Loopback capability for diagnostics
· Externally selectable half or full step modes of operation at transmit output
· Squelch circuitry at the receive and collision inputs to reject noise
· TTL/MOS compatible controller interface

DP83910A Connection Diagram

DP83910A datasheet

DP83910A
PDF/DataSheet Download

Datasheet: DP83910A
File Size: 226869 KB
Manufacturer: NSC [National Semiconductor]
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Related Part Number

DP83910A Relative Products

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The DP8391 Serial Network Interface (SNI) provides the Manchester data encoding and decoding functions for IEEE 802.3 Ethernet/Cheapernet type local area networks. The SNI interfaces the DP8390 Network Interface Controller (NIC) to the Ethernet transceiver...
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