BUS-63100 SERIES
MIL-STD-1553 DATA BUS
SINGLE AND DUAL TRANSCEIVERS
BUS-63102
BUS-63105
BUS-63125
DESCRIPTION
The BUS-63100 transceivers are
complete transmitter and receiver
pairs conforming fully to MIL-STD-
1553A and 1553B. Features available
with selected models of this high reli-
ability series include: Smiths and
Harris interface type choices,
+12 V/+15 V power supply voltage
range, variable threshold levels, and
single (24-pin DDIP or square) and
completely independent dual redun-
dant (36-pin DDIP) packaging config-
urations. All models are also available
in flat packs.
The receiver section of the BUS-
63100 series accepts phase-modula-
ted bipolar data from a MIL-STD-1553
Data Bus and produces TTL signal
data at its outputs: RX Data Out and
RX Data Out. These outputs repre-
sent positive and negative variations
of the input data signals beyond an
internally fixed or externally set
threshold level. An external STROBE
input enables or disables the receiver
outputs.
The transmitter section accepts bipo-
lar TTL signal data at its TX Data and
TX Data input lines and produces
phase modulated bipolar data at the
TX Data and TX Data outputs. The
transmitters’ output voltage level is
typically 28 Vpp to 30 Vpp. An exter-
nal input, INHIBIT, takes priority over
the transmitter inputs and disables
the transmitter when activated with a
logic “1.”
The small size and different model
capabilities available with the
BUS-63100 series simplify engineer-
ing design, making it an excellent
choice for interfacing with any
MIL-STD-1553 system.
FEATURES
•
Conforms Fully to MIL-STD-1553A
and 1553B
•
Some Models Available to Military
(DESC) Drawings
•
Model Capabilities:
Single or Dual Redundant
Packaging
-12 V/-15 V Power Supply Voltage
Range Available
Harris or Smith’s I/O Compatibility
•
Small Size:
Single – 24-Pin DDIP or Square
Dual – 36-Pin DDIP Flat Packs
•
Low Power
•
High Reliability – LSI
±V
1553
DATA
BUS
+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
RECEIVER
SECTION
COMPARATOR
COMPARATOR
RX Data
LIMITER
FILTER
FILTER
RX Data
DECODER
COMPARATOR
COMPARATOR
TRANSMITTER
SECTION
TRANSMITTER
SECTION
DRIVER
DRIVER
TX Data Out
SHAPING
NETWORK
NETWORK
DRIVER
TX Data In
TX Data Out
SHAPING
SHAPING
NETWORK
NETWORK
ENCODER
TX Data In
TX INHIBIT
FIGURE 1. BUS-63100 BLOCK DIAGRAM
M
DDC Custom Monolithics utilized in this product are copyright under the Semiconductor chip Protection Act.
GENERAL
The BUS-63100 Series offers complete transmitter and receiver
pairs packaged in either single or dual redundant form which are
designed for use in any MIL-STD-1553 application.
Figure 1 shows a BUS-63100 Series transceiver connected to a
MIL-STD 1553 Data Bus. Once transformer isolated, coupling to
a MIL-STD-1553 Data Bus can be either short stub (direct) or
long (transformer). Figure 2 shows the different configurations
and lists the recommended DDC transformer bus product for use
with each model.
ENCODER/DECODER COMPATIBILITY
BUS-63105, BUS-63107, BUS-63125 and BUS-63127 are
directly compatible to Harris 15530 type Encoder/Decoders. All
other transceivers are directly compatible to Smiths type.
Transceivers which are directly comparible with one type can be
converted for use with the other by simply switching the output
lines, RX Data and RX Data, and inverting their signals by
means of external inverting gates.
WAVEFORMS
All transceivers conform fully to MIL-STD-1553 requirements.
Additionally, BUS-63102 conforms to MACAIR standards, pro-
ducing sinusoidal waveforms at 1 MHz.
TRANSCEIVER CAPABILITIES
DDC’s BUS-63100 Series of transceivers offer a wide range of
capabilities (on selected models), which include power supply
voltage levels, packaging configurations, Smiths or Harris type
encode/decoder direct compatibility, and internal (pre-set)
and/or external (adjustable) threshold levels. The capabilities of
the different models are described in the paragraphs which fol-
low and are summarized in TABLE 1.
THRESHOLD LEVELS
All models offer internal (factory preset) threshold levels.
Additionally, BUS-63102 and BUS-63104 offer externally set
threshold levels. These external threshold levels are adjustable
from 0 V to 2 V, with the use of two external 10 KOhm poten-
tiometers; see FIGURE 5.
POWER SUPPLY VOLTAGES
Power supply voltage requirements on the BUS-63102 and
BUS-63104 are met over a range from
±
12 V to
±
15 V. All mod-
els operate with either -12 V or -15 V supplies. All models
require a + 5 V supply. Refer to TABLE 1.
TABLE 2. TRANSMIT OPERATING MODE
TX Data In
X
(1)
0
0
1
1
TX Data In
X
0
1
0
1
TX INHIBUIT
H
X
L
L
X
DRIVER OUTPUT
(2)
OFF
(3)
OFF
ON
ON
OFF
PACKAGING CONFIGURATIONS
Single transceivers, BUS-63102 and BUS-63104 are packaged
in 24 pin square packages, all other single transceivers are
packaged in 24 pin DDIP. Dual transceivers are packaged in 36
pin DDIP’s.
NOTES:
(1) X = Don’t Care
(2) DRIVER OUT = TX Data Out and TX Data Out.
(3) DRIVER OUTPUT terminals are in the high impedance mode
during OFF time, independent of INHIBIT status.
TABLE 1. TRANSCEIVER CAPABILITIES
±12 VDC
TO
±15 VDC
Single
BUS-63102
BUS-63104
BUS-63105
BUS-63107
BUS-63115
BUS-63117
Dual
BUS-63125
BUS-63127
BUS-63135
BUS-63137
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
-12
VDC
-15
VDC
24 PIN
24 PIN
36 PIN I/O COMPATIBUILITY THRESHOLD
MIL-STD- FLATPACK
MACAIR
SQUAR
DDIP
DDIP
1553
MODEL NO.
SMITHS
HARRIS
INT
EXT
E
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Single
BUS-63112
BUS-63114
BUS-63106
BUS-63108
BUS-63116
BUS-63118
Dual
BUS-63126
BUS-63128
BUS-63136
BUS-63138
2
(1.4:1)
TX
BUS-63105
TX
BUS-63115
BUS-63125(1)
BUS-63135(1) RX
RX
OR
1
2
3
(2:1)
1
2
3
39VPP
BUS-25679
8
4
Z0(70Ω, NOM)
DATA
SHORT STUB
BUS
(DIRECT COUPLED)
1 FT MAX
55Ω
55Ω
28VPP
LONG STUB
(TRANSFORMER
COUPLED) (1:1.4)
7 20 FT MAX 8
5
20 VPP
BUS-25679
4
1
3
52.5Ω
52.5Ω
BUS-25679
(1:1)
TX
BUS-63102
BUS-63104
TX
RX
RX
1
2
3
8
4
SHORT STUB
(DIRECT COUPLED)
1 FT MAX
55Ω
55Ω
30VPP(BUS-63102)
BUS-27765 28VPP(BUS-63104
LONG STUB
(TRANSFORMER
COUPLED) (1:1.4)
(1:0.7)
1
2
3
7 20 FT MAX 8
5
4
1
3
52.5Ω
52.5Ω
OR
BUS-25679
BUS-27765
21 VPP (BUS-63102)
20VPP(BUS-63104)
(1:0.83)
TX
BUS-63107
TX
BUS-63117
BUS-63127(1)
BUS-63137(1) RX
RX
OR
1
2
3
1
2
3
33VPP
BUS-29854
8
4
28VPP
LONG STUB
(TRANSFORMER
COUPLED) (1:1.4)
1
3
52.5Ω
52.5Ω
SHORT STUB
(DIRECT COUPLED)
1 FT MAX
55Ω
55Ω
(1:0.6)
7 20 FT MAX 8
5
20VPP
4
BUS-25679
Notes:
Z0(70Ω, NOM)
(1) One half of dual transceivers shown.
(2) Bus must be terminated with its characteristic impedance at both ends.
(3) Only one connection can be made from the Transceiver to the MIL-STD
Data Bus, either long stub or short but not both.
BUS-29854
FIGURE 2. BUS COUPLING CONFIGURATIONS
3
TABLE 3. BUS-63100 SERIES SPECIFICATIONS
TRANSCEIVER NUMBER
CHANNELS
POWER SUPPLIES
ENCODER/DECODER INTERFACE TYPE
MATCHING TRANSFORMER MODEL
RECEIVER
Strobe
Input Level
Threshold Level (Internal)(2)(3)
CMRR
Input Resistance-Diff.
Input Capacitance-Diff.
Output Fan Out
TRANSMITTER
TX Inhibit
Input Level
Output Level(Direct Coupled)
(4)
Rise/Fall Time
Output Noise
Output Offset Voltage
Output Impedance-Non-Transmitting
Output Resistance- Diff.
Output Capacitance-Diff.
LOGIC
TTL/CMOS Compatible
All Inputs
All Outputs
POWER SUPPLY REQUIREMENTS
BUS-63102
(1)
BUS-63112
Single
±12 VDC to ±15 VDC
Smiths
BUS-27765
1 ‘LS Load
40 Vpk-pk, Diff. max
0.5 Vpk-pk min, 1.0 Vpk-pk max
40 db, min
7 kOhm, min
5 pf, max
10 TTL Loads
1 ‘LS Load
1 ‘LS Load
29 Vpk-pk, nom
across 140 Ohm load
280 ns, typ
10 mVpk-pk, Diff. max
±90 mVpk-pk, max across
35 Ohm load
BUS-63104
BUS-63114
Single
±12 VDC to ±15 VDC
Smiths
BUS-27765
*
*
*
*
*
*
*
*
*
*
*
150 ns, typ
*
*
*
BUS-63105
†
BUS-63112
Single
-15 VDC
Harris
BUS-25679
BUS-63104
BUS-63114
Single
-15 VDC
Smiths
BUS-25679
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
1 TTL
*
0.56 Vpk-pk min, 1.0 Vpk-pk max
*
*
*
*
1 TTL
1 TTL
*
*
125 ns, typ
*
*
*
10 kOhm, min
5 pF, max
*
*
*
*
*
*
2’ LS Loads, max
10 TTL Loads, max
*
*
1 TTL
*
-15 VDC ±5%
20/30 mA
95/130 mA
170/225 mA
*
*
+12 VDC
-12 VDC
+5 VDC ±10% to +15 VDC ±5% to -15 VDC ±5% +5 VDC ±10%
30/45 mA
30/45 mA
30/45 mA
24/30 mA
85/114 mA
140/180 mA
51/65 mA
118/135 mA
175/195 mA
*
*
*
*
*
15 V Supply
1.28/1.58 W
2.47/3.24 W
3.43/4.40 W
15 V Supply
0.0 W
0.15/0.18 W
0.30/0.36 W
*
*
*
*
*
*
*
*
30/45 mA
30/45 mA
30/45 mA
*
*
*
Non-Transmitting-(typ/max)
Transmitting-50% duty cycle (typ/max)
Transmitting-100% duty cycle (typ/max)
THERMAL
Operating Junction Temperature
Operating Case Temperature
Storage Temperature
Thermal Inpedance
Junction to Case
Case to Air (typ)
POWER DISSIPATION
Single Channel Transmitting
Non-Transmitting-(typ/max)
Transmitting-50% duty cycle (typ/max)
Transmitting-100% duty cycle (typ/max)
POWER DISSIPATION
Hottest Die(5)
Non-Transmitting-(typ/max)
Transmitting-50% duty cycle (typ/max)
Transmitting-100% duty cycle (typ/max)
MECHANICAL
Package Style
Dimensions
Package Style
Dimensions
Weight
-55°C to +160°C
-55°C to +125°C
-65°C to +150°C
40°C/W (Hottest Die)
21°C/W (24 Pin Square)
12 V Supply
1.05/1.37 W
1.86/2.49 W
2.48/3.28 W
12 V Supply
0.0 W
0.12/0.15 W
0.24/0.29W
*
*
*
7.0°C/W
30°C/W (24 Pin DDIP)
15 V Supply
0.45/0.68 W
0.85/1.45 W
1.30/2.23 W
15 V Supply
0.45/0.68 W
0.85/1.45 W
1.30/2.23 W
*
*
*
*
*
*
*
*
*
24 Pin Square
1.258” x 1.258” x 0.175”
31.95 mm x 31.95 mm x 4.45 x mm
24 Pin Square Flat Pack
1.255” x 1.255” x 0.160”
31.88 mm x 31.88 mm x 4.06 x mm
0.6 oz
17 (g)
24 Pin DDIP
*
1.400” x 0.805” x 0.200”
*
35.56 mm x 20.32 mm x 5.08 x mm
*
24 Pin Square Flat Pack
*
1.275” x 0.775” x 0.175”
*
32.36 mm x 19.69 mm x 4.45 x mm
*
0.6 oz
*
17 (g)
*
4
NOTES for TABLE 3.
BUS-63107
BUS-63108
Single
-12 VDC
Harris
BUS-29854
*
*
*
*
*
*
*
*
*
*
*
115 ns, typ
*
*
*
BUS-63117
BUS-63118
Single
-12 VDC
Smiths
BUS-29854
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
(1) On BUS-63102, filtering eliminates harmonics above 1 MHz. Differential group delay is ± 35 ns (10 kHz-2 MHz).
(2) The Threshold Level, as referred to in this specification, is meant to be the maximum peak-to-peak voltage
(measured on the Data Bus) that can be applied to the receivers’ input without causing the output to change
from the OFF state.
(3) On BUS-63102 and BUS-63104, external threshold levels are adjustable from 0V to 2V, with two external 10K Ohm
potentiometers. Connect one pot between pin 5 and GND and the other between pin 12 and GND.
(4) On BUS-63102, Output Level (direct coupled) is 30 V pk-pk.
(5) On BUS-63102 and BUS-63104, Hottest Die are defined as the driver transistors.
* Same as value to the left.
† BUS-63105 available as Military (DESC) drawing 5962-86049-02ZC
†† BUS-63125 and BUS-63126 are available as Military (DESC) drawing 5962-87579.
*
*
*
*
*
*
+5 VDC ±10%
30/45 mA
30/45 mA
30/45 mA
*
*
*
*
*
-12 VDC ±5%
20/30 mA
115/155 mA
210/275 mA
*
*
*
*
*
30°C/W (24 Pin DDIP)
*
12 V Supply
0.39/0.59 W
0.81/1.36 W
1.30/2.16 W
12 V Supply
0.39/0.59 W
0.81/1.36 W
1.30/2.16 W
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
5
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