TX DATA IN
BOTH HIGH
OR BOTH LOW
= INHIBIT
TX DATA IN
t
DTX
INHIBIT
HI OR LOW
OVERRIDING
INHIBIT
HI OR LOW
90%
t
DXOFF
t
DXON
t
R
50%
V
O
10%
Figure 3 – Driver Logic Waveforms
BIPOLAR
ZERO
OUT
15
22
TX
DATA
IN
TX
DATA
OUT
(1 : 1)
55Ω
1
CT
BIPOLAR
ONE
OUT
22
17
22
23
TX
DATA
IN
TX
DATA
OUT
2
Do not
Connect
}
Taps at 1:.707 For
Stub Coupling
A
For
Direct
Coupling
55Ω
CT3232
BIPOLAR
ONE
OUT
7
10
RX
DATA
OUT
RX
DATA
IN
15
TECHNITROL
T1553-1
OR EQUIVALENT
TRANSFORMER
BIPOLAR
ZERO
OUT
6
7
RX
DATA
OUT
RX
DATA
IN
16
Aeroflex ACT15530
or
Harris HD15530
CT3232
Figure 4 – Typical Input / Output Connections
4
POWER DISSIPATION – WATTS
3
±15V
2
±12V
% Duty Cycle =
Transmit Time
Transmit & Receive Time
x 100
1
Note: Case Temperature must be held to +100°C Maximum
for 100% Duty Cycle. For Operation at Case Temperature
of +125°C, See "Power and Thermal Data".
10
20
30 40 50 60 70 80
DUTY CYCLE – PERCENT
90 100
0
0
Figure 5 – Typical Power Dissipation (Total Hybrid)
Aeroflex Circuit Technology
6
SCDCT3232 REV A 6/27/02 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
