TYPICAL APPLICATIONS

APPLICATIONS

The standard connections for the HI-8482 are shown in Figure 2.

Decoupling of the supply should be done near the IC to avoid

propagation of noise spikes due to switching transients.

The

ground (GND) connection should be sturdy and isolated from large

switching currents to providea quiet ground reference.

The HI-8482 can be used with HI-8382 or HI-8585 Line Drivers to

providea complete analog ARINC 429 interface solution. A simple

application, which can be used in systems requiringa repeater

type circuit for long transmissions or for test interfaces, is given in

Figure 3. More HI-8382 or HI-8585 drivers may be added to test

multiple ARINC channels, as shown.

ARINC RECEIVER STANDARD CONNECTIONS

+5V

+15V

HI-8482

ARINC

CHANNEL 2

LOGIC

TEST

INPUTS

N/C

N/C

OUT2A

OUT1A

OUT1B

A

B

A

B

39 pF

39 pF

39 pF

39 pF

IN1A

IN1B

CAP1A

CAP1B

IN2A

IN2B

CAP2A

CAP2B

TESTA

TESTB

ARINC

CHANNEL 1

CHANNEL 1

DATA OUT

TO LOGIC

CHANNEL 2

DATA OUT

TO LOGIC

-15V

ARINC REPEATER CIRCUIT

ARINC

OUTPUT

CHANNEL 1

ARINC

OUTPUT

CHANNEL 2

ARINC

INPUT

CHANNEL

DATA (A)

DATA (B)

DATA (A)

DATA (B)

OUT1A

OUT1B

IN1A

IN1B

AOUT

BOUT

AOUT

BOUT

A

B

A

B

OUT2B

HI-8482

HOLT INTEGRATED CIRCUITS

3