78Q8392LA03 Maxim Integrated Products, 78Q8392LA03 Datasheet
78Q8392LA03
Manufacturer Part Number
78Q8392LA03
Description
Manufacturer
Maxim Integrated Products
Datasheet
1.78Q8392LA03.pdf
(14 pages)
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DESCRIPTION
The 78Q8392L/A03 Ethernet Transceiver is a
replacement
78Q8392L/A02 coax line transmitter/receiver. Only a
single resistor value change is required for
upgrading an existing 78Q8392L/A02 design to the
78Q8392L/A03.
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/A03 is available in lead-free 16-pin
plastic and 28-pin PLCC packages.
Page: 1 of 14
coaxial
for
DATA FROM
differential
COLLISION
cable
DATA TO
the
SIGNAL
TO DTE
DTE
DTE
510 ±5%
x 4
signals
SSI/TDK/Teridian
logic
©
and
2008 Teridian Semiconductor Corporation
signals.
CONNECT DIAGRAM
78
the
1
2
3
6
7
8
CD+
CD–
RX+
RX–
TX+
TX-
FEATURES
•
•
•
•
•
•
•
•
•
Very low power consumption
Compliant w ith Ethernet II, IEEE 802.3
10Base5 and 10Base2
Integrates all transceiver functions except
signal and power isolation
Innovative
component 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
HBE
RR+
VEE
VEE
VEE
TXO
RR-
RXI
4
5
13
16
15
14
9
12
11
10
with
design
COAX
Low Power Ethernet
Coaxial Transceiver
–9V
IEEE
minimizes
78Q8392L/A03
802.3
November 2008
compatible
external
Rev 1.3
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