78Q8392L Teridian Semiconductor Corp. (TDK Semiconductor), 78Q8392L Datasheet

78Q8392L

Manufacturer Part Number

78Q8392L

Description

10/100 Ethernet PHYS

Manufacturer

Teridian Semiconductor Corp. (TDK Semiconductor)

Datasheet

1.78Q8392L.pdf (12 pages)

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DESCRIPTION

The 78Q8392L Ethernet Transceiver is a low power

BiCMOS coax line transmitter/receiver. The device

includes analog transmit and receive buffers, a 10

MHz on-board oscillator, timing logic for jabber and

heartbeat functions, output drivers and bandgap

reference, in addition to a current reference and

collision detector.

This transceiver provides the interface between the

single-ended

Manchester-encoded

Primary functional blocks include the receiver,

transmitter, collision detection and jabber timer. This

IC may be used in either internal or external MAU

environments.

The 78Q8392L is available in 16-pin plastic and 28-

pin PLCC packages.

coaxial

DATA FROM

differential

COLLISION

cable

DATA TO

SIGNAL

TO DTE

DTE

510 ±5%

x 4

signals

logic

and

signals.

CONNECT DIAGRAM

the

CD+

CD–

RX+

RX–

TX+

TX-

FEATURES

•

Very low power consumption

Compliant with Ethernet II, IEEE 802.3

10Base5 and 10Base2

Integrates all transceiver functions except

signal and power isolation

Innovative

components count and power consumption

Jabber timer function integrated on chip

Externally selectable CED heartbeat allows

operation

repeaters

Squelch circuitry at all inputs rejects noise

Power-on reset and test modes

Advanced BiCMOS process

GND

CDS

VEE

TXO

HBE

RR+

VEE

RR-

RXI

with

Low Power Ethernet

Coaxial Transceiver

design

COAX

–9V

IEEE

minimizes

802.3

78Q8392L

February 1998

compatible

external

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