Absolute Maximum Ratings
Operating Case Temperature
Storage Case Temperature
Positive Power Supply Voltage
Receiver Differential Input
Receiver Input Voltage (Common Mode)
Driver Peak Output Current
Total Package Power Dissipation over the Full Operating Case
Temperature Rise
Maximum Junction To Case Temperature Rise for the Hottest
Device
Thermal Resistance, Junction to Bottom of Case
-55°C to +125°C
-65°C to +150°C
-0.3 V to +7.0 V
±10 V
±5 V
650 mA
2 Watt
(Note: Normal operation conditions require one
transmitter on and the other off at any given time.
10°C
5°C/W
Electrical Characteristics – Driver Section
Input Characteristics, TX DATA in or TX DATA in
Parameter
Condition
"0" Input Current
"1" Input Current
"0" Input Voltage
"1" Input Voltage
V
IN
= 0.4 V
V
IN
= 2.7 V
Symbol
I
ILD
I
IHD
V
IHD
V
IHD
Min
Typ
-0.2
1
Max
-0.4
40
0.7
Unit
mA
µA
V
V
2.0
Inhibit Characteristics
"0" Input Current
"1" Input Current
"0" Input Voltage
"1" Input Voltage
Delay from TX inhibit,(0¡1) to inhibited out-
put
Delay from TX inhibit, (1¡0) to active output
Differential Output Noise, inhibit mode
Differential Output Impedance (inhibited)
Note 1
V
IN
=0.4V
V
IN
=2.7V
I
ILI
I
IHI
V
ILI
V
IHI
t
DXOFF
t
DXON
V
NOI
Z
OI
2K
2
200
80
2
300
150
10
-0.2
1.0
-0.4
40
0.7
mA
µA
V
V
nS
nS
mV p-p
Ω
Output Characteristics
Differential output level
Rise And Fall Times(10% to 90% of p-p out-
put)
Output Offset at point A-A’on Fig 5., 2.5 µS
after midpoint crossing of the parity bit of the
last word of a 660 µS message
Delay from 50% point of TX DATA or TX
DATA input to zero crossing of differential
signal
R
L
=35
Ω
R
L
=35
Ω
V
O
t
r
V
OS
6.5
100
7.5
170
8.0
300
V p-p
nS
±90
mV peak
t
DTX
100
150
nS
Note 1. Power ON/OFF, measured from 75KHz to 1MHz at Point A-A. See Figure 5
Aeroflex Circuit Technology
3
SCD4468D REV B 5/25/00 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
