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參數(shù)資料
| 型號(hào)： | 78Q8392L-CP |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Low Power Ethernet Coaxial Transceiver |
| 中文描述： | 低功率以太網(wǎng)同軸收發(fā)器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大小： | 54K |
| 代理商： | 78Q8392L-CP |
78Q8392L
Low Power Ethernet
Coaxial Transceiver
February 1998
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
coaxial
cable
Manchester-encoded
differential
Primary functional blocks include the receiver,
transmitter, collision detection and jabber timer. This
IC may be used in either internal or external MAU
environments.
signals
and
signals.
the
logic
The 78Q8392L is available in 16-pin plastic and 28-
pin PLCC packages.
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
design
components count and power consumption
Jabber timer function integrated on chip
Externally selectable CED heartbeat allows
operation
with
IEEE
repeaters
Squelch circuitry at all inputs rejects noise
Power-on reset and test modes
Advanced BiCMOS process
minimizes
external
802.3
compatible
CONNECT DIAGRAM
510 ±5%
x 4
CD+
CD–
RX+
RX–
TX+
TX-
COLLISION
SIGNAL
TO DTE
DATA TO
DTE
DATA FROM
DTE
VEE
VEE
GND
RR-
RR+
–9V
4
1
13
2
3
6
12
11
7
8
78
TXO
15
HBE
9
VEE
5
CDS
16
RXI
14
COAX
10
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