BU-63147 and BU-63149
MIL-STD-1553 DATA BUS
+5V TRANSCEIVER
FEATURES
DESCRIPTION
The BU-63147/49 transceiver is a com- The transmitter section accepts
plete dual transmitter and receiver pair bi-phase TTL signal data at its
+5V Power Supply
Low Power
•
•
•
TX DATA IN
conforming fully to MIL-STD-1553A TX DATA IN and
inputs
and 1553B. Features include: mono- and produces phase-modulated
lithic design, +5V power supply voltage, bipolar data at the TX DATA OUT and
Conforms Fully To MIL-STD-1553A
AND 1553B
TX DATA OUT
outputs.
The
Harris or Smiths type decoder inter-
face, completely independent dual transmitter’s output voltage level is
redundant operation, and small size typically about 11Vpp. An external
(36 pin DIP). The receiver section of input, INHIBIT, takes priority over the
the BU-63147/49 series accepts transmitter inputs and disables the
phase-modulated bipolar data from a transmitter when activated with a logic
MIL-STD-1553 Data Bus and pro- “1”.
Dual Transceiver
•
•
Available with MIL-STD-1760
Compliant Transmitter Voltage
duces TTL Signal data at its output.
Available with McAir Compatible
Waveform
The small size, +5V power supply volt-
•
RX DATA OUT and
age,
and
compliance
with
RX DATA OUT
These outputs represent positive and MIL-STD-1553 simplify engineering
negative variations of the input data design, making it an excellent choice
signals beyond an internally fixed for interfacing with any MIL-STD-1553
threshold level. An external STROBE system.
36-Pin DIP
•
•
HARRIS or SMITHS I/O
Compatibility
input enables or disables the receiver’s
outputs.
+5 V
RECEIVER STROBE
1553
DATA
BUS
BI PHASE
TTL DATA
PHASE MODULATED
BIPOLAR DATA
RECEIVER SECTION
COMPARATOR
RX DATA IN
FILTER
RX DATA OUT
SHORT OR
LONG STUB
COUPLING
ISOLATION
TRANSFORMER
DECODER
RX DATA OUT
RX DATA IN
FILTER
COMPARATOR
TRANSMITTER SECTION
TX Data Out
TX Data Out
SHAPING
NETWORK
TX DATA IN
ENCODER
SHAPING
NETWORK
TX DATA IN
TX INHIBIT
CASE/GND
FIGURE 1. BU-63147/49 BLOCK DIAGRAM (one channel shown)
© 2000 Data Device Corporation