Device
Engineering
Incorporated
385 East Alamo Drive
Chandler, AZ 85225
Phone: (480) 303-0822
Fax: (480) 303-0824
E-mail: admin@deiaz.com
DEI1170A, DEI1171A
ARINC 429 LINE DRIVER WITH
RATE SELECT and TRI-STATE
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 feature
Thermally enhanced 5 x 5 mm MLP package
The DEI1170A family is an improved version of the popular DEI1170 family
GENERAL DESCRIPTION
The DEI1170A/DEI1171A bipolar integrated circuits are line drivers designed to directly drive the ARINC 429
avionics serial digital data bus. The device converts TTL/CMOS serial input data to the tri-level RZ bipolar
differential modulation format of the ARINC bus. A TTL/CMOS control input selects the output slew rate for HI
(100KBS) and LOW (12.5KBS) speed operation. No external timing capacitors are required. A429 output tri-state
capability is enabled by the TS_CTL input.
The DEI1170A/1A Line Drivers are an improved version of the popular DEI1170/1 family. They provide:
Lower power consumption
Excellent waveform fidelity
Improved transient immunity. This improvement simplifies the equipment design for lightning and RF
immunity requirements.
The Line Driver provides 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. This feature is useful in non-standard applications
where there are multiple drivers on a wire pair.
©2013 Device Engineering Inc
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4/18/2013
1
2
3
4
5
TERMINAL DESCRIPTION
20
19
6
7
8
9
10
Notes:
1.
2.
Package: 20 Lead 5.0 x 5.0mm MLP
Exposed Pad is connected V- Supply on DEI1170A.
Exposed Pad is electrically isolated on DEI1171A.
18
17
16
15 14 13 12 11
BOTTOM VIEW
Table 1 Pin Description
SIGNAL NAME
HI/LO
TTLIN0
TTLIN1
TS_CTL
429OUTA_0
429OUTA_10
429OUTA_37
429OUTB_0
429OUTB_10
429OUTB_37
V+
GND
V-
NC
PIN
15
17
18
1
7
6
5
9
10
11
12
19
4
2, 3, 8, 13,
14 ,16, 20
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.
LOGIC INPUT.
Open or ‘1’ disables output Tristate function. ‘0’ Enables
output Tristate function.
429 OUTPUT.
ARINC 429 format serial digital data output A, 0 Ohm
429 OUTPUT.
ARINC 429 format serial digital data output A, 10 Ohm
429 OUTPUT.
ARINC 429 format serial digital data output A, 37 Ohm
429 OUTPUT.
ARINC 429 format serial digital data output B, 0 Ohm
429 OUTPUT.
ARINC 429 format serial digital data output B, 10 Ohm
429 OUTPUT.
ARINC 429 format serial digital data output B, 37 Ohm
POWER INPUT.
+9.5 to +16.5 VDC.
POWER INPUT.
Ground.
POWER INPUT.
–9.5 to –16.5 VDC
No Internal Connect
©2013 Device Engineering Inc
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4/18/2013
FUNCTIONAL DESCRIPTION
429OUTA_37_n
HI/LO_n
429OUTA_10_n
429OUTA_0_n
TTLIN1_n
TTLIN0_n
+5
TS_CTL_n
TRI-STATE
INPUT LOGIC
and
LEVEL SHIFT
EDGE
SHAPING
OUTPUT
DRIVERS
429OUTB_0_n
429OUTB_10_n
V+
GND
V-
BIAS
+5V
429OUTB_37_n
-5V
Figure 1 Block Diagram
Table 2 Speed Control Function Table
HI/LO
L
H
OUTPUT TRANSITION TIME
10us (12.5KBS data)
1.5us (100KBS data)
Table 3 Transmit Data Function Table
TS_CTL_n
X
X
X
1
0
TTLIN1_n
0
0
1
1
1
TTLIN0_n
0
1
0
1
1
429OUTA
0V
-5V
5V
0V
Hi -Z
429OUTB
0V
5V
-5V
0V
Hi-Z
NOTES
Null output
Zero output
One output
Null output
Tri-state Output
©2013 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 4 Absolute Maximum Ratings
PARAMETER
V+ Supply Voltage
V- Supply Voltage
Storage Temperature
Input Voltage
TTLIN, HI/LO, AND TS_CTL Inputs
429OUT Outputs (175us surge)
MIN
-0.3
0.3
-65
Gnd – 0.5
0 Ohm Output ‘V-’ – 1.0
10 Ohm Output ‘V-’ – 5.0
37 Ohm Output ‘V-’ – 20
MAX
+20
-20
+150
‘V+’ + 0.5
‘V+’ + 1.0
‘V+’ + 5.0
‘V+’ + 20
0.5
1.5
150
2000
260
UNITS
V
V
°C
V
V
V
V
A
W
°C
V
°C
Input Current
429OUT Outputs (175us surge)
Power Dissipation @ 85°C
20L MLPQ, thermal pad soldered to heat spreader land w/ vias to internal plane
Junction Temperature:
Tjmax
ESD per JEDEC A114-A Human Body Model
Peak body Temperature:
Notes:
20L MLPQ
-0.5
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
©2013 Device Engineering Inc
Page 4 of 10
DS-MW-01170-02 Rev E
4/18/2013
Table 5 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 6 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
TTL_INx
TS_CTL
Single Ended
Referenced to Ground
No Load.
Force output to -5V and +5V
IIL
0
-20
-100
-200
uA
TEST CONDITIONS (1)
SYMBOL
VIH
VIL
IIH
MIN
2.0
-0.3
0
25
NOM
MAX
V+
0.8
100
UNITS
V
V
uA
LOGIC INPUTS
ARINC OUTPUTS
ARINC Output Voltage
HI
NULL
LO
Output Tristate Leakage
Current
ARINC Output Short Circuit
Current
0 Ohm output
Output Resistance:
37 Ohm Output
10 Ohm Output
0 Ohm Output
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-
VoHI
VoNULL
VoLO
Iz
4.5
-0.25
-5.5
-200
5.0
0
-5.0
5.5
+0.25
-4.5
+200
V
V
V
uA
External 37.5 resistor
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
IV+
TTLIN0=TTLIN1= 0V
No Load
IV-
100
-146
24
6.0
0
133
-133
37.5
10
0.2
146
-100
50
13.5
2
mA
mA
Ohms
Ohms
Ohms
1
2
us
5
15
us
-
-6.0
3.0
-2.5
6.0
-
mA
mA
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.
©2013 Device Engineering Inc
Page 5 of 10
DS-MW-01170-02 Rev E
4/18/2013
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