ACT4438 Aeroflex Circuit Technology, ACT4438 Datasheet - Page 5

• Manufacturer Part Number: ACT4438
• Description: Act4438-1 Transceiver For Mil-std-1553 / 1760 in a Chipscale Package
• Manufacturer: Aeroflex Circuit Technology

Model No.
ACT4438-1
Aeroflex Circuit Technology
+5V
7.7V P-P MAX
6V P-P MIN
6.8µF
Figure 3 – Transmitter (TX) Output Waveform
2.7KΩ
Figure 5 – Typical Transformer Connection
* Rise and fall times measured at point A-A’ in Fig 5
0.1µF
RISET
ACT4438-1
10,11,33,34
TX DATA OUT
TX DATA OUT
37
RX DATA IN
RX DATA IN
Z
GND
Direct Stub
O
90%
9,35,39,50
Configurations and Ordering Information
18-21
23-26
52
51
Industrial Temperature
Screening Level
10%
-55°C to +90°C
t
r
1
2
3
*
1:2.5
Transformer Model:
Use Pulse/Technitrol
Part# 1553-45 or equivalent
4
5
6
7
8
t
f
*
55Ω
55Ω
A’
A
0 Volts
Z
Z
O
O
5
0 volts
Receiver and Transmitter
Data Levels
Figure 4 – Transmitter (TX) Output Offset
Figure 6 – Power Dissipation vs. Duty Cycle
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
Note: Vcc = 5 Volts, V
*Offset measured at point A-A’ in Fig 5
Normally Low
10
Maximum
LAST BIT
20
(See Figure 1)
SCD4438-1 REV A 11/19/01 Plainview NY [phone]
DUTY CYCLE – PERCENT
30
2.5 µsec
bus
40
(pt A-A') at 7.5 Volts P-P
50
Typical
60
70
Magnified View
56 Bump Chip
OUTPUT OFFSET
OUTPUT OFFSET
80
Carrier
Case
90 100
*
*