78Q8392LA03-28CH/F Maxim Integrated Products, 78Q8392LA03-28CH/F Datasheet

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78Q8392LA03-28CH/F

Manufacturer Part Number
78Q8392LA03-28CH/F
Description
TXRX 10BASE 2/5 ETH COAX 28-PLCC
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of 78Q8392LA03-28CH/F

Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Manufacturer
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Part Number:
78Q8392LA03-28CH/F
Manufacturer:
TI
Quantity:
2 000
Part Number:
78Q8392LA03-28CH/F
Manufacturer:
Maxim Integrated
Quantity:
10 000
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

Related parts for 78Q8392LA03-28CH/F

78Q8392LA03-28CH/F Summary of contents

Page 1

DESCRIPTION The 78Q8392L/A03 Ethernet Transceiver is a replacement for the 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 ...

Page 2

FUNCTIONAL DESCRIPTION The 78Q8392L/A03 incorporates six basic functions of the Ethernet Transceiver, including receiving, transmitting, collision signaling, collision detection, jabber timing, and the heartbeat function. Refer to Figure 1 for a general system block diagram. RECEIVER FUNCTIONS The receiver senses ...

Page 3

JABBER FUNCTION When valid data on the TX± pins is detected, the jabber timer is started. If there is valid data for more than 20 ms, a latch is set which disables the transmitter output and enables the 10 MHz ...

Page 4

PIN DESCRIPTION NAME TYPE DESCRIPTION Collision Output. Balanced differential line driver outputs from the collision detect circuitry. The 10 MHz signal from the internal oscillator is transferred to these outputs in the event of collision, excessive transmission (jabber), or during ...

Page 5

ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings indicate limits beyond which permanent damage may occur. Continuous operation at these limits is not recommended; operations should be limited to those conditions specified under recommended operating characteristics. PARAMETER Supply Voltage Input ...

Page 6

DC OPERATING CHARACTERISTICS NOTES 1. Currents into device pins are positive, currents out of device pins are negative. If not specified, voltages are referenced to ground. 2. All typical are for VEE = -9V 25°C. 3. -8.55V > ...

Page 7

AC OPERATING CHARACTERISTICS 0°C < T(ambient) < +70°C, VEE = 9V ± 5% PARAMETER t Receiver startup delay RON (RXI to RX±) t Receiver propagation delay Rd (RXI to RX±) t Differential outputs rise time Rr (RX± , CD±) t ...

Page 8

ELECTRICAL SPECIFICATIONS TRANSMIT SPECIFICATIONS The first bit transmitted from TXO may have data and phase violations. The second through last bit reproduce the TX± signal with less than or equal to the specified jitter. There is no logical signal inversion ...

Page 9

INPUT STEP FUNCTION V CD (MAX) RXI CD± TX± CD± TX± TXO CD± Page 78Q8392L RXI COLLISION DETECTOR C = 150 pF RC NETWORK SIMULATES WORST CASE CABLE STEP RESPONSE V CD (MIN) t ...

Page 10

INPUT SIGNAL WITH 30 ns RISE AND FALL TIMES Page 1kΩ RXI NETWORK SIMULATES WORST CASE CABLE JITTER Input jitter <= ±1 ns RX± Output jitter <= ± ...

Page 11

MHz Page 1:1 39 Ω ± Ω ±1% FIGURE 10: Test Circuit for TX± Input © 2008 Teridian Semiconductor Corporation 78Q8392L/A03 Low Power Ethernet Coaxial Transceiver TX+ 78Q8392L/A03 TX- GND Rev 1.3 ...

Page 12

PACKAGE PIN DESIGNATIONS (Top View VEE 4 13 78Q8392L VEE 16-Pin DIP Page CDS VEE TXO VEE ...

Page 13

MECHANICAL DRAWING (inch / mm) 28-Pin PLCC 16-Pin DIP Page © 2008 Teridian Semiconductor Corporation 78Q8392L/A03 Low Power Ethernet Coaxial Transceiver Rev 1.3 ...

Page 14

... TSC assumes no liability for applications assistance. Teridian Semiconductor Corp., 6440 Oak Canyon Suite 100, Irvine, CA 92618 TEL (714) 508-8800, FAX (714) 508-8877, http://www.teridian.com Page ORDER NUMBER 78Q8392LA03-CP/F 78Q8392LA03-28CH/F Comments Final Data Sheet release Corrected package marking error (from Added package dimensions © ...

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