BUS-8553 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – MIL-STD-1553 TRANSCEIVER

BUS-8553
MIL-STD-1553 TRANSCEIVER
DESCRIPTION
The BUS-1553 Transceiver is a com-
plete transmitter and receiver which
fully conforming to MIL-STD-1553A
and 1553B. Features of this high reli-
ability transceiver include: Harris
15530 type Encoder/Decoder direct
interface compatibility, ±15 V or +15
and -12 V power supply requirements,
and an internal (factory pre-set)
threshold level.
The transmitter section accepts bipo-
lar TTL signal data at its TX Data and
TX Data input lines and produces a
28 V pk-pk differential signal across a
140 Ω load that is coupled through a
transformer to the TX Data and
TX Data outputs. An external TX
INHIBIT, when activated with a logic
“1” will take the transmitter off-line and
ignore the data inputs
The block diagram, FIGURE 1, illus-
trates the BUS-8553 Transceiver. The
receiver section accepts phase-mod-
ulated bipolar data from a MIL-
STD-553 Data Bus and produces TTL
signal data at outputs: RX Data Out
and RX Data Out. These outputs rep-
resent positive and negative excur-
sions of the input bus signals beyond
a preset threshold level. The receiver
can be taken off-line (outputs dis-
abled) by applying a logic “0” to the
RECEIVER STROBE input.
APPLICATION
The BUS-8553s small size, low
power dissipation, and direct inter-
face compatibility with Harris 15530
type Encoder/Decoder makes it an
excellent choice for any MIL-STD-
1553A or 1553B transceiver applica-
tion. The BUS-8553 comes in a her-
metic 24-pin DDIP package that
measures 1.4 x 0.8 x 0.2 inches.
FEATURES
• ^{Meets All MIL-STD-1553A and}
1553B Requirements
• ^{Very Low Power Dissipation}
• ^{Improved Receiver Filtering}
Enhances System Bit Error Rate
• ^{HARRIS 15530 Encoder/Decoder}
Direct Interface Compatibility
• ^{Screened to MIL-PRF-38534}
• ^{Power Supplies:}
±15 V or
+15 V and -12V
1553
DATA
BUS
SHORT OR
LONG STUB
COUPLING
-12 V
OR
+15 V -15 V +5 V
RECEIVER STROBE
PHASE MODULATED ^{RECEIVER SECTION}
BIPOLAR DATA
COMPARATOR
RX Data In
ISOLATION
TRANSFORMER
RX Data In ^LIMITER
FILTER
BI PHASE
TTL DATA
RX Data
RX Data
COMPARATOR
DECODER
TRANSMITTER SECTION
DRIVER
TX Data Out
SHAPING
NETWORK
TX Data Out
DRIVER
SHAPING
NETWORK
TX Data In
TX Data In
ENCODER
© ^{1985, 1999 Data Device Corporation}
BUS-8553-BLOCK DIAGRAM
TX INHIBIT