ACT4808 查看數據表（PDF） - Aeroflex Corporation

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ACT4808

Dual Transceivers for MACAIR A3818, A5690, A5232, A4905 & MIL-STD-1553

Aeroflex Corporation 

Terminal

TRANSCEIVER

UNDER TEST

TX DATA OUT

RX DATA IN

RX DATA OUT

RX DATA OUT

TX DATA OUT

RX DATA IN

Isolation

Transformer

1:N

B

B'

Transformer turns ratio:

N = 0.707

Recommend Technitrol 1553-1

Coupling

Transformer

1 : 1.414

Zo

R

A

Isolation

Resistors

R = 0.75 ZO

R

A'

Data

Bus

Wire

Pair

Zo

Terminal Input Impedance B – B'

MIL-STD-1553B para 4.5.2.1.2.3

1KΩ minimum. 75KHz – 1MHz

Figure 3 – Databus Interface Using Transformer Coupling (Figure 9, MIL-STD-1553B)

Terminal

TRANSCEIVER

UNDER TEST

TX DATA OUT

RX DATA IN

RX DATA OUT

Isolation

Transformer

1:N

55Ω

B

RX DATA OUT

TX DATA OUT

RX DATA IN

B'

55Ω

Transformer turns ratio:

N=1

Recommend Technitrol 1553-1

Zo

A

Data

Bus

Wire

Pair

A'

Zo

Terminal Input Impedance B – B'

MIL-STD-1553B para 4.5.2.2.2.3

2KΩ minimum. 75KHz – 1MHz

Figure 4 – Databus Interface Using Direct Coupling (Figure 10, MIL-STD-1553B)

Aeroflex Circuit Technology

6

SCD4808 REV E 12/9/99 Plainview NY (516) 694-6700

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