Figure 3 – Transmitter (TX) Output Waveform
Figure 4 – Transmitter (TX) Output Offset
LAST BIT
t
f
*
90%
Magnified View
OUTPUT OFFSET
*
6V P-P MIN
7.7V P-P MAX
0 Volts
0 volts
OUTPUT OFFSET
*
10%
2.5 µsec
t
r
*
* Rise and fall times measured at point A-A’ in Fig 5
*Offset measured at point A-A’ in Fig 5
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 not powered)
1600
POWER DISSIPATION
MILLIWATTS
1400
1200
1000
800
Typical
600
400
200
Maximum
TX DATA OUT
D.U.T
1:2.5
P
B
52.5Ω
A
Center
Tap
1:1.77 for
stub
coupling
TX DATA OUT
RX DATA IN
RX DATA IN
P’
B’
52.5Ω
A’
0
0
10
20
30
40
50
60
70
80
90 100
DUTY CYCLE – PERCENT
Note: Vcc = 5 Volts, V
bus
(pt A-A') at 7.5 Volts P-P
Configurations and Ordering Information
Model No.
ACT4468D
ACT4468DF
ACT4468DI
ACT4468DFI
DESC No.
5962-92061(Pending)
5962-92061(Pending)
5962-92061(Pending)
5962-92061(Pending)
Receiver Data level
Normally Low
Normally Low
Normally High
Normally High
Case
DIP Package
Flat Package
DIP Package
Flat Package
Configuration
Dual
Dual
Dual
Dual
Aeroflex Circuit Technology
5
SCD4468D REV B 5/25/00 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
