Device
Engineering
Incorporated
385 East Alamo Drive
Chandler, AZ 85225
Phone: (480) 303-0822
Fax: (480) 303-0824
E-mail: admin@deiaz.com
DEI1070A-DEI1075A
ARINC 429 LINE DRIVER FAMILY
FEATURES
TTL/CMOS to ARINC 429 Line Driver
HI/LO Speed Control Pin for Hi (100KBS) or Lo (12.5KBS) speed slew rates
±9.5V to ±16.5V supplies
Drives full ARINC load
Output resistor options: 0, 10 or 37.5 Ohms
Tristate Output options
8 lead SOICN package with exposed pad for thermal enhancement (shown actual size)
The DEI1070A family is an improved version of the popular DEI1070 family
Pin for pin replacements with the HI8585 and HI8586
GENERAL DESCRIPTION
The DEI107xA is a family of 8 pin bipolar integrated circuit line drivers which directly drive the ARINC 429
avionics serial digital data bus. These ARINC 429 Line Drivers convert TTL/CMOS serial input data to the “Tri-
level RZ bipolar differential modulation format” of the ARINC bus. The output slew rate is selectable for HI speed
(100KBS) or LOW speed (12.5KBS) operation. No external timing capacitors are required.
The DEI107xA Line Driver family is an improved version of the popular DEI107x family. It provides:
Lower power consumption
Excellent waveform fidelity
Improved transient immunity. This improvement simplifies the equipment design for lightning and RF
immunity requirements.
This new Line Driver family provides options for various output resistor values and output tri-state capability (see
table 1). There are three output resistor options: 0 , 10 and 37 . The 0 and 10 versions require external
resistors to achieve the 37 output resistance of the ARINC 429 standard. The external resistors are normally used
to simplify the external transient voltage protection network. The outputs are tri-state capable on the 1073/4/5
versions. This feature is useful in non-standard applications where there are multiple drivers on a wire pair.
Table 1 Line Driver Options
Output Resistor Value
Tri-state Capability
1070A
37 Ohms
No
1071A
10 Ohms
No
1072A
0 Ohms
No
1073A
37 Ohms
Yes
1074A
10 Ohms
Yes
1075A
0 Ohms
Yes
©2011 Device Engineering Inc
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TERMINAL DESCRIPTION
Table 2 Pin Description
PIN
HI/LO
TTLIN0
TTLIN1
GND
1
8
NAME
HI/LO
TTLIN0
TTLIN1
GND
V-
429OUTA
429OUTB
V+
DESCRIPTION
LOGIC INPUT.
Slew rate control. 1 = Hi speed. 0 = Low speed.
LOGIC INPUT.
Serial digital data input 0.
LOGIC INPUT.
Serial digital data input 1.
POWER INPUT.
Ground.
POWER INPUT.
–9.5 to –16.5 VDC
429 OUTPUT.
ARINC 429 format serial digital data output A.
429 OUTPUT.
ARINC 429 format serial digital data output B.
POWER INPUT.
+9.5 to +16.5 VDC.
V+
429OUTB
429OUTA
V-
1
2
3
4
5
2
7
3
6
4
5
Note:
Heatsink pad is electrically Isolated.
6
7
8
FUNCTIONAL DESCRIPTION
HI/LO
TTLIN1
TTLIN0
INPUT LOGIC
and
LEVEL SHIFT
EDGE
SHAPING
OUTPUT
DRIVERS
Rout:
0, 10, or
37.5 Ohms
429OUTA
429OUTB
TRI-STATE
Rout:
0, 10, or
37.5 Ohms
Figure 1 Block Diagram
Table 3 Speed Control Function Table
HI/LO
L
H
OUTPUT TRANSITION TIME
10uS (12.5KBS data)
1.5uS (100KBS data)
Table 4 Transmit Data Function Table
TTLIN1
L
L
H
H
H
TTLIN0
L
H
L
H
H
429OUTA
0V
-5V
5V
0V
Hi-Z
429OUTB
0V
5V
-5V
0V
Hi-Z
NOTES
Null output
Zero output
One output
Null output
1070A/1071A/1072A
Hi-Z output
1073A/1074A/1075A
©2011 Device Engineering Inc
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TTLIN1
TTLIN0
Tf
+5
90%
Tf
10%
10%
Tr
90%
Tr
429OUTA
-5
+5
429OUTB
-5
Tfall
+10
90%
Tfall
10%
Trise
-10
90%
Trise
Differential
429OUT
(A-B)
10%
Figure 2 Line Driver Waveforms
ELECTRICAL DESCRIPTION
Table 5 Absolute Maximum Ratings
PARAMETER
V+ Supply Voltage
V- Supply Voltage
Storage Temperature
Input Voltage
TTLIN and HI/LO Inputs
429OUT Outputs (175uS surge)
MIN
-0.3
0.3
-65
Gnd – 0.5
1072A/1075A ‘V-’ – 1.0
1071A/1074A ‘V-’ – 5.0
1070A/1073A ‘V-’– 20
MAX
+20
-20
+150
‘V+’ + 0.5
‘V+’ + 1.0
‘V+’ + 5.0
‘V+’ + 20
0.5
1.2
UNITS
V
V
°C
V
V
V
V
A
W
W
°C
°C
V
°C
Input Current
429OUT Outputs (175uS surge)
Power Dissipation @ 85°C
8L EP SOIC, thermal pad soldered to heat spreader land
8L SB DIP
Junction Temperature:
Tjmax, Plastic Packages
Tjmax, Ceramic Packages
ESD per JEDEC A114-A Human Body Model
Peak body Temperature:
Notes:
8L EP SOIC
-0.5
0.72
150
175
2000
260
1.
2.
3.
Stresses above absolute maximum ratings may cause permanent damage to the device.
The device is tolerant of one or both outputs shorted to Ground and of both outputs shorted together.
Voltages referenced to Ground
©2011 Device Engineering Inc
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Table 6 Recommended Operating Conditions
PARAMETER
Supply Voltage
Operating Temperature
-xEx parts
-xMx parts
SYMBOL
V+
V-
T
op
CONDITIONS
9.5 to 16.5V
-9.5 to –16.5V
-55 to +85 °C
-55 to +125 °C
Table 7 Electrical Characteristics
PARAMETER
Input Voltage, Logic 1
Input Voltage, Logic 0
Input Current, Logic 1
Input Current, Logic 0
VIN = 5.0V
VIN = 0.0V
TEST CONDITIONS (1)
SYMBOL
VIH
VIL
IIH
IIL
MIN
2.0
-0.3
0
0
25
-20
NOM
MAX
V+
0.8
100
-100
UNITS
V
V
uA
uA
LOGIC INPUTS
ARINC OUTPUTS
ARINC Output Voltage
HI
NULL
LO
Output Tristate Leakage
Current
1073A/1074A/1075A
ARINC Output Short Circuit
Current
1072A/1075A
ARINC Output Short Circuit
Current
1071A/1074A
ARINC Output Short Circuit
Current
1070A/1073A
Output Resistance:
1070A/1073A
1071A/1074A
1072A/1075A
Output Slew Rate, Hi Speed
Lo to Hi and Hi to Lo
transitions
Output Slew Rate, Lo Speed
Lo to Hi and Hi to Lo
transitions
Quiescent Operating Supply
Current:
IV+
IV-
Single Ended
Referenced to Ground
No Load.
Force output to -5V and +5V
Iz
External 37.5 resistor
to GND
Output LO IscLO
Output HI IscHI
External 27.5 resistor
to GND
Output LO IscLO
Output HI IscHI
Output shorted to GND
Output LO IscLO
Output HI IscHI
Room Temperature
Rout37
Calculated from
Rout10
delta-Vout / delta-Iload
Rout0
Where Iload = 0 and 20mA
See
Figure 3
HI/LO = 1
No Load, 10% to 90%
Tr/Tf
single ended output
HI/LO = 0
No Load, 10% to 90%
Tr/Tf
single ended output
SUPPLY CURRENT
V+ =15V, V- = -15V
HI/LO = 0 or 1
TTLIN0=TTLIN1= 0V
IV+
No Load
IV-
-200
+200
uA
VoHI
VoNULL
VoLO
4.5
-0.25
-5.5
5.0
0
-5.0
5.5
+0.25
-4.5
V
V
V
100
-146
133
-133
146
-100
mA
mA
67
-175
64
-283
24
6
0
133
-133
133
-133
37.5
10
0.2
175
-67
283
-64
50
13.5
2
mA
mA
mA
mA
Ohms
Ohms
Ohms
1
2
us
5
15
us
-
-6.0
3.0
-2.5
6.0
-
mA
mA
©2011 Device Engineering Inc
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PARAMETER
TEST CONDITIONS (1)
SYMBOL
MIN
NOM
MAX
UNITS
Notes:
1.
2.
3.
General Conditions: Tcase = rated operating temperature, -55/+85°C or -55/+125°C.
V+/- = +/-9.5 to +/-16.5V
Unless otherwise noted, currents flowing in to DUT are positive, currents flowing out of DUT are
negative, voltages are referenced
to
Ground.
Not production tested.
1.6
1.4
Normalized Resistance
1.2
1
0.8
0.6
0.4
0.2
0
-100
-50
0
50
100
150
200
Temperature (°C)
Figure 3 Normalized Output Resistance vs. Temperature
OUTPUT V-I CHARACTERISTICS
1000
800
600
400
Output Current (mA)
200
NULL output
0
HI output
LO output
-200
-400
-600
-800
-1000
-20
-15
-10
-5
0
Output Voltage (V)
5
10
15
20
Figure 4 429OUT V-I Characteristics, ±15V supplies
©2011 Device Engineering Inc
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