HS-3182
ARINC 429 Bus Interface Line Driver Circuit
March 1997
Features
Description
• TTL and CMOS Compatible Inputs
The HS-3182 is a monolithic dielectrically isolated bipolar differ-
ential line driver designed to meet the specifications of ARINC
429. This Device is intended to be used with a companion chip,
HS-3282 CMOS ARINC Bus Interface Circuit, which provides
• Adjustable Rise and Fall Times via Two External
Capacitors
• Programmable Output Differential Voltage via V
Input
REF
the data formatting and processor interface function.
All logic inputs are TTL and CMOS compatible. In addition to
the DATA (A) and DATA (B) inputs, there are also inputs for
CLOCK and SYNC signals which are AND’d with the DATA
inputs. This feature enhances system performance and allows
the HS-3182 to be used with devices other than the HS-3182.
• Operates at Data Rates Up to 100 Kilobits/Sec
• Output Short Circuit Proof and Contains Over-Voltage
Protection
• Outputs are Inhibited (0 Volts) If DATA (A) and DATA
(B) Inputs are Both in the “Logic One” State
Three power supplies are necessary to operate the
• DATA (A) and DATA (B) Signals are “AND’d” with Clock
and Sync Signals
HS-3182: +V = +15V ± 10%, -V = -15V ± 10%, and V = 5V
1
± 5%. V
is used to program the differential output voltage
REF
swing such that V
(DIFF) = ± 2V
. Typically, V =
• Full Military Temperature Range
OUT
V = 5V ± 5%, but a separate power supply may be used for
REF
REF
1
V
Ordering Information
which should not exceed 6V.
REF
o
The driver output impedance is 75Ω ± 20% at 25 C. Driver
output rise and fall times are independently programmed
through the use of two external capacitors connected to the
TEMPERATURE
RANGE
PKG.
NO
PACKAGE
PART NUMBER
o
o
SBDIP
-40 C to +85 C HS1-3182-9+
D16.3
D16.3
D16.3
J28.A
J28.A
C
and C inputs. Typical capacitor values are C = C
=
=
A
B
A
B
B
o
o
75pF for high-speed operation (100KBPS), and C = C
-55 C to +125 C HS1-3182-8
A
300pF for low-speed operation (12 to 14.5KBPS). The out-
puts are protected against over-voltage and short circuit as
shown in the Block Diagram. The HS-3182 is designed to
o
o
SMD#
CLCC
-55 C to +125 C 5962-8687901EA
o
o
-55 C to +125 C HS4-3182-8
o
o
operate with a case temperature range of -55 C to +125 C,
o
o
SMD#
-55 C to +125 C 5962-86879013A
o
o
or 0 C to +70 C.
Pinouts
HS-3182 (SBDIP)
HS-3182 (CLCC)
TOP VIEW
TOP VIEW
V
1
2
3
4
5
6
7
8
16 V
1
REF
GND
SYNC
15 NC
4
3
2
1
28 27 26
14 CLK
25
CLK
NC
DATA (A)
NC
5
6
7
8
9
DATA (A)
13 DATA (B)
24 NC
C
12 C
11 B
A
B
23 DATA (B)
A
OUT
OUT
C
22
NC
10 NC
9 +V
-V
B
C
A
21 NC
20 NC
19 NC
GND
NC 10
NC 11
TRUTH TABLE
SYNC CLK DATA (A) DATA (B)
A
B
COMMENTS
Null
12 13 14 15 16 17 18
OUT
OUT
X
L
L
X
H
H
H
H
X
X
L
X
X
L
0V
0V
0V
0V
0V
0V
Null
H
H
H
H
Null
L
H
L
-V
REF
+V
Low
REF
H
H
+V
REF
-V
High
REF
H
0V
0V
Null
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
File Number 2963.1
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