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 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.
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
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
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.
•
Screened to MIL-PRF-38534
•
Power Supplies:
±15 V or
+15 V and -12V
+15 V
1553
DATA
BUS
-12 V
OR
-15 V +5 V
RECEIVER STROBE
BI PHASE
TTL DATA
PHASE MODULATED
BIPOLAR DATA
RX Data In
SHORT OR
LONG STUB
COUPLING
ISOLATION
TRANSFORMER
RX Data In
RECEIVER SECTION
COMPARATOR
RX Data
LIMITER
FILTER
RX Data
DECODER
COMPARATOR
TRANSMITTER SECTION
DRIVER
TX Data Out
SHAPING
NETWORK
DRIVER
TX Data Out
SHAPING
NETWORK
TX Data In
TX Data In
ENCODER
TX INHIBIT
BUS-8553-BLOCK DIAGRAM
©
1985, 1999 Data Device Corporation
TABLE 3. BUS-8553 PIN FUNCTION TABLE
24-PIN DDIP
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
FUNCTION
TX Data Out
TX Data Out
Gnd
N.C.
N.C.
N.C.
RX Data Out
Strobe
Gnd
RX Data Out
N.C.
N.C
+15V DC
N.C.
RX Data In
RX Data In
N.C.
Gnd
-12V or -15V DC
+5V DC
TX Inhibit
TX Data In
TX Data In
N.C.
12
0.750 MAX
(19.05)
13
0.150 MAX
(3.81)
0.250 MIN
(6.35)
1.390 MAX
(33.02)
12 EQ.SP.
0.100=1.100
TOL. NONCUM
(2.5=27.9)
0.100
(2.54)
1
24
0.600±0.002
(15.2 ±0.05)
BOTTOM VIEW
0.020 0.51 DIA PIN
0.016 0.41 24 PLACES
SIDE VIEW
0.095
(2.41)
BUS-8553 MECHANICAL OUTLINE
ORDERING INFORMATION
BUS-8553-XX0X
Supplemental Process Requirements:
S = Pre-Cap Source Inspection
L = Pull Test
Q = Pull Test and Pre-Cap Inspection
Blank = None of the Above
Process Requirements:
0 = Standard DDC Processing, no Burn-In (See page xiii.)
1 = MIL-PRF-38534 Compliant
2 = B*
3 = MIL-PRF-38534 Compliant with PIND Testing
4 = MIL-PRF-38534 Compliant with Solder Dip
5 = MIL-PRF-38534 Compliant with PIND Testing and Solder Dip
6 = B* with PIND Testing
7 = B* with Solder Dip
8 = B* with PIND Testing and Solder Dip
9 = Standard DDC Processing with Solder Dip, no Burn-In (See page xiii.)
Temperature Grade/Data Requirements:
1 = -55°C to +125°C
2 = -40°C to +85°C
3 = 0°C to +70°C
4 = -55°C to +125°C with Variables Test Data
5 = -40°C to +85°C with Variables Test Data
8 = 0°C to +70°C with Variables Test Data
NOTE: Mating Transformer is BUS-25679
2
The information in this data sheet is believed to be accurate; however, no responsibility is
assumed by Data Device Corporation for its use, and no license or rights are
granted by implication or otherwise in connection therewith.
Specifications are subject to change without notice.
105 Wilbur Place, Bohemia, New York 11716-2482
For Technical Support - 1-800-DDC-5757 ext. 7257 or 7381
Headquarters -
Tel: (631) 567-5600 ext. 7257 or 7381, Fax: (631) 567-7358
Southeast -
Tel: (703) 450-7900, Fax: (703) 450-6610
West Coast -
Tel: (714) 895-9777, Fax: (714) 895-4988
Europe -
Tel: +44-(0)1635-811140, Fax: +44-(0)1635-32264
Asia/Pacific -
Tel: +81-(0)3-3814-7688, Fax: +81-(0)3-3814-7689
World Wide Web -
http://www.ddc-web.com
ILC DATA DEVICE CORPORATION
REGISTERED TO ISO 9001
FILE NO. A5976
J-ABR
PRINTED IN THE U.S.A.
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