BUS-8559-100L ETC1 [List of Unclassifed Manufacturers], BUS-8559-100L Datasheet

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BUS-8559-100L

Manufacturer Part Number

BUS-8559-100L

Description

VARIABLE OUTPUT MIL-STD-1553 TRANSCEIVER

Manufacturer

ETC1 [List of Unclassifed Manufacturers]

Datasheet

1.BUS-8559-100L.pdf (4 pages)

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DESCRIPTION

Designed specifically for use in auto-

matic test equipment where a variable

transmitter output level is required,

the DDC Model BUS-8559 transceiv-

er is a complete transmitter and

receiver conforming to MIL standards

1553A and 1553B.

The receiver section accepts phase-

modulated bipolar data at the input

and produces a bi-phase TTL signal

at the output, see FIGURE 1.

Outputs, DATA and DATA, are posi-

tive and negative excursions of the

input beyond an internally fixed

threshold. The positive and negative

thresholds are internally set at the

factory for a nominal 1 V pk-pk signal,

when measured at point “A” in FIG-

URE 2. An external strobe input is

provided which allows the the receiv-

er to be removed from the line. A logic

“0” applied to RECEIVER STROBE

will disable the receiver output.

The BUS-8559 transmitter section

accepts bi-phase TTL data at the

input and produces a nominal 0 to 27

V pk-pk differential output across a

145

1999 Data Device Corporation

load. When the transmitter is

BUS-25679

TRANSFORMER

coupled to the data bus with the spec-

ified transformer*, and isolated (on the

data side) with two 55

resistors, and loaded with two 70

terminations

receivers), the data bus signal pro-

duced is a nominal 0 to 7.5 V pk-pk

when measured at the output side of

the 55

When both DATA and DATA, inputs

are held low or high, the transmitter

presents a high impedance to the

line. An external inhibit input is also

provided, which allows the the trans-

mitter output to be removed from the

line.. When a logic “1” is applied to the

TX INHIBIT input, the transmitter is

disabled, and the data inputs are

ignored.

APPLICATION

The BUS-8559 is suitable for any

MIL-STD-1553

requires a transceiver. The BUS-8559

comes in a hermetic, 24-pin DDIP

package which measures 1.4 x 0.8 x 0.2

inches.

BUS-8559 BLOCK DIAGRAM

resistors.

DATA

DATA

(plus

application

TRANSCEIVER

MIL-STD-1553 TRANSCEIVER

LIMITER

DRIVER

DRIVER

fault isolation

-15

additional

+15

which

NETWORK

NETWORK

SHAPING

SHAPING

+5

FILTER

VAR V

(O to +15 V)

COMPARATOR

COMPARATOR

CC

VARIABLE OUTPUT

•

•

•

•

•

•

Variable Transmitter Output

Transmitter/Receiver in a Single

Very Low Power Dissipation

Improved Receiver Filtering

Meets MIL-STD-1553A and 1553B

Power Supplies:

24-Pin DDIP Hybrid

Enhances System Bit Error Rate

±15 V or

+15 V and -12 V

BUS-8559

FEATURES

BUS-8559

TX DATA

TX INHIBIT

RECEIVER

STROBE

RX DATA

RX DATA

TX DATA

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