ACT4487 Aeroflex Circuit Technology, ACT4487 Datasheet - Page 4

• Manufacturer Part Number: ACT4487
• Description: Act 4487 Dual Transceiver For Mil-std-1553/1760
• Manufacturer: Aeroflex Circuit Technology

Strobe Characteristics (Logic "0" Inhibits Output)
Power Supply Currents – Per Channel – See Figure 4
Power Supply Voltages
Note 1. Power on or off, measured from 75KHz to 1MHz at point A and transformer self impedance of 3K
Note 2: Power Supplies: ±15 Volts ±0.75 V & +5 Volts ±0.5 V, bypassed by 10 µF (Tantalum recommended)
Note 3: When measured as shown per Figure 5 with ± 10 Volt peak, line to ground, DC to 2MHz
Note 4: Typical power is measured with V
"0" Input Current
"1" Input Current
"0" Input Voltage
"1" Input Voltage
±15V Operating Power Supply Voltage Range
+5V Operating Power Supply Voltage Range)
Parameter
Differential Receiver Input Voltage Range
(See Figure 5, Point B)
Common Mode Rejection Ratio (Note 3)
"1" State – Rx Data or Rx Data Output
"0" State – Rx Data or Rx Data Output
Delay (average) from Differential Input Zero
Crossings to RX DATA and RX DATA Output
50% points
Aeroflex Circuit Technology
Strobe Delay (Turn-on or Turn-off)
Transmitter Standby
50% duty cycle
100% duty cycle
Input Threshold Voltage (referred to the bus)
25% duty cycle
at 1MHz.
Capacitor minimum. All measurements & specifications apply over the temperature range of -55°C to +125°C
(case temperature) unless otherwise specified.
Electrical Characteristics — Receiver Section
BUS
at point A = 7.5 V
Power Data
100KHz–1MHz
I
OH
Condition
I
OI
V
V
TXFMR
= -0.4 mA
4
S
S
= 4 mA
1.4:1
=0.4V
=2.7V
P-P
Symbol
CMRR
V
V
t
V
V
DXT
I
I
I
I
V
V
I
I
I
I
t
I
V
IDR
I
CC
EE
CC
EE
CC
EE
CC
EE
V
OH
SD
I
I
I
I
OL
TH
IL
IH
V
L
L
L
L
IH
IL
CC
EE
L
SCD4487D REV B 3/10/98 Plainview NY [phone]
+14.25
-14.25
+4.50
Min
0.60
45
2.0
2.5
+15.00
-15.00
+5.00
Typ
0.35
0.75
180
270
12
18
45
12
18
90
12
18
12
18
-0.1
0
50
1
3.7
+15.75
-15.75
Max
+5.50
1.20
400
100
200
0.5
+40
100
40
16
30
50
20
30
20
30
20
30
0.7
1
-0.2
minimum
Unit
V
V
mA
mA
dB
nS
µA
nS
V
V
P-P
P-P
V
V
V
V