ACT4418 Aeroflex Circuit Technology, ACT4418 Datasheet - Page 5

• Manufacturer Part Number: ACT4418
• Description: Act4418 Molded Dual Variable Amplitude Transceivers For MacaIR A3818, A5690, A5232, A4905 & Mil-std-1553
• Manufacturer: Aeroflex Circuit Technology

NOTES
1. Characteristics guaranteed by design, not production tested.
2. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3K
3. Specifications apply over the temperature range of -40°C to +85°C (Case Temperature) unless otherwise
4. All typical values are measured at +25°C.
Aeroflex Circuit Technology
minimum at 1 MHz.
noted.
Figure 3 Transmitter (TX) Output Amplitude
and the other not powered – 100% Duty Cycle)
TX DATA OUT
TX DATA OUT
Figure 5 Typical Transformer Connection
RX DATA IN
RX DATA IN
(Total hybrid with one channel transmitting
30
27
24
21
18
15
12
9
6
3
0
V
0
P
-
P
1
@ B–B'
vs Control Voltage
70
2
Typical
3
CONTROL VOLTAGE
C1
C2
4
C1 & C2 are > 0.47µF,
BX Ceramic Capacitors.
Transformer turns ratios:
N1:N2 = 1:1
N1:N3 = 1:0.707
Use Aeroflex 25T1553-1
N1:N2
5
Slope = 3V
6
B
B’
52.5
52.5
7
Ctr
tap
P
-
P
A
A’
/Vdc
8
N1:N3 for
coupling
9
stub
10
70
Vdc
5
0 Volts
Figure 6 Typical Hybrid Power Dissipation
transmitting and the other not powered)
Figure 4 Transmitter (TX) Output offset
1.5
1.0
0.5
vs Duty Cycle (Total with one channel
2.0
4.0
3.5
3.0
2.5
0
0
*Offset measured at point A-A’ in Fig 5
10
20
LAST BIT
DUTY CYCLE, PERCENT
For V
Total Hybrid Input
30
SCD4418D Rev A 9/24/97 Plainview NY [phone]
OP
40
Power
-
2.5 µsec
P
= 30 V at 140
50
60
Typical Hybrid
70
Dissipation
Magnified View
80
OUTPUT OFFSET
OUTPUT OFFSET
90 100
3.25
1.65
*
*