ACT4489 Просмотр технического описания (PDF) - Aeroflex Corporation

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ACT4489

SINGLE TRANSCEIVER FOR MIL-STD-1553/1760

Aeroflex Corporation 

Figure 3 – Transmitter (TX) Output Offset

0 Volts

LAST BIT

Magnified View

* OUTPUT OFFSET

* OUTPUT OFFSET

2.5 µsec

*Offset measured at point A in Figure 5

Figure 5 – Typical 1553 Bus Connections

Transformer Coupled Stub

70Ω

ACT 4489

TX DATA OUT

1 : 0.707

37

2

C

1 : 1.4 52.5Ω

A

TX DATA OUT

RX DATA IN

RX DATA IN

15

T1553-1

Zoi

52.5Ω

VCM

Figure 4 – Hybrid Power Dissipation vs. Duty Cycle

3600

3200

2800

2400

Typical Hybrid Input Power

3.0W

2000

1600

1.9W

1200

800

Typical Hybrid

400

0.270

Dissipation

0

0 10 20 30 40 50 60 70 80 90 100

DUTY CYCLE – PERCENT

Direct Coupled Stub

ACT 4489

TX DATA OUT

TX DATA OUT

RX DATA IN

RX DATA IN

1:1

38

2

B

52.5Ω

14

T1553-1

52.5Ω

Zoi

A

70Ω

Transformer Model use Technitrol Part# 1553-1

or equivalent

Note: Vcc= +12V, VEE = -12V, VL= +5V, Transformer ratio 1:1,

VBUS (point A) at 7VP-P.

Configurations and Ordering Information

ACT

Model # / Ordering Part #

ACT 4489

ACT 4489-I

ACT 4489-F

ACT 4489-FI

Specifications subject to change without notice.

Aeroflex Circuit Technology

Case

Style

Plug In

Plug In

Flat Package

Flat Package

5

DESC

Number

TBA

TBA

TBA

TBA

Rx Standby

Normally Low

Normally High

Normally Low

Normally High

SCD4489 Rev A 1/29/98 Plainview NY (516) 694-6700

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