Philips Semiconductors

Product specification

NE83C92

Low-power coaxial Ethernet transceiver

1

1995 May 1

853-1736 15180

DESCRIPTION

The NE83C92 is a low power BiCMOS coaxial transceiver interface

(CTI) for Ethernet (10base5) and Thin Ethernet (10base2) local area

networks. The CTI is connected between the coaxial cable and the

Data Terminal Equipment (DTE) and consists of a receiver,

transmitter, receive-mode collision detector, heartbeat generator and

jabber timer (see Block Diagram). The transmitter output connects

directly to a doubly terminated 50

Ω cable, while the receiver output,

collision detector output and transmitter input are connected to the

DTE through isolation transformers. Isolation between the CTI and

the DTE is an IEEE 802.3 requirement that can be met on signal

lines by using a set of pulse transformers. Power isolation for the

CTI is achieved using DC-to-DC conversion through a power

transformer.

The part is fully pin compatible with the industry standard 8392, but

has substantially lower current consumption, is fully compliant with

the IEEE802.3 standard, and has additional features such as

automatic selection between AUI and coaxial connections, and

requires no external pull-down resistors for local integrated MAU

application.

The NE83C92 is manufactured on an advanced BiCMOS process

and is available with PLCC package which make it ideally suited to

lap-top personal computers or systems where low power

consumption, limited board space and jumperless design is

required. Refer to selection flow chart for optimal application.

FEATURES

10BASE-2, and ISO 8802/3 interface specifications

reduces external part count (local/integrated MAU requires no

external pull-down resistors).

conditions to minimize current consumption

cable, allowing hardwiring of AUI connection and local/integrated

CTI connection

PIN CONFIGURATION

CD+

1

CD–

2

RX+

3

VEE

4

VEE

5

RX–

6

TX+

7

TX–

8

16 CDS

15 TXO

14

RXI

13 VEE

12 RR–

11 RR+

10 GND

9

HBE

N Packages

1

2

3

4

5

6

7

8

9

10

11

12 13

14 15 16 17 18

19

20

21

22

23

24

25

26

27

28

V

EE

V

EE

V

EE

V

EE

V

EE

V

EE

V

EE

V

EE

V

EE

V

EE

V

EE

V

EE

RR–

A PACKAGE

VEE

SD00308

available for repeater and advanced system applications

power-up

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

ORDER CODE

DWG #

16-Pin Plastic Dual In-Line Package

0 to +70

NE83C92N

SOT28-4

28-Pin Plastic Leaded Chip Carrier

0 to +70

NE83C92A

SOT261-3