Device
Engineering
Incorporated
DEI1070A-DEI1075A
ARINC 429 LINE DRIVER FAMILY
385 East Alamo Drive
Chandler, AZ 85225
Phone: (480) 303-0822
Fax: (480) 303-0824
E-mail: admin@deiaz.com
FEATURES
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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:
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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: 0ȍ, 10ȍ and 37ȍ. The 0ȍ and 10ȍ versions require external
resistors to achieve the 37ȍ 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
1070A
37 Ohms
No
1071A
10 Ohms
No
1072A
0 Ohms
No
1073A
37 Ohms
Yes
1074A
10 Ohms
Yes
1075A
0 Ohms
Yes
Output Resistor Value
Tri-state Capability
©2011 Device Engineering Inc
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DS-MW-01070-02 Rev H
04/05/12