Figure 3 – Transmitter Output Amplitude (V
O
)
vs V
CONT
Voltage
V
O PK
-
PK
@ A–A'
7.1
FS
Figure 4 – Transmitter (TX) Output Offset
LAST BIT
5.68
OUTPUT AMPLITUDE
Slope =
∆
V
O
÷
∆
V
CONT
0.8FS
Magnified View
OUTPUT OFFSET
*
4.26
0.6FS
OUTPUT OFFSET
*
2.84
0.4FS
2.5 µsec
1.42
0.2FS
*Offset measured at point A-A’ in Figure 5
0
0
V
CONT
dc
1
2
3
4
5
CONTROL VOLTAGE
Figure 5 – Typical Transformer Connection
70Ω
70Ω
Z
O
Figure 6 – Power Dissipation vs. Duty Cycle
(Total hybrid with one channel transmitting
and the other in standby)
1600
1:2.5
P
B
55Ω
A
Center
Tap
P’
B’
55Ω
RX DATA IN
RX DATA IN
V
CONT
= 0 – 5Vdc
0
0
10
20
30
40
50
60
70
80
90 100
A’
1:1.77 for
stub
coupling
POWER DISSIPATION
MILLIWATTS
1400
1200
1000
800
Typical
600
400
200
Maximum
TX DATA OUT
D.U.T
TX DATA OUT
Transformer:
Use Technitrol 1553-45 or Equivalent
DUTY CYCLE – PERCENT
Note: Vcc = 5 Volts, V
bus
(Pt. A-A') at 7.1 Volts P-P
Configurations and Ordering Information
Model No.
ACT4419-D *
ACT4419-DF *
DESC No.
Pending
Pending
Receiver Data level
Normally Low
Normally Low
Case
DIP
Flat Package
Specs.
1553
1553
Configuration
Dual
Dual
* For 10V Control voltage consult factory.
Aeroflex Circuit Technology
5
SCD4419D REV G 5/10/00 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
