ACT4455 查看數據表（PDF） - Aeroflex Corporation
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ACT4455 Datasheet PDF : 8 Pages
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Absolute Maximum Ratings
Operating case temperature
-55°C to +125°C
Storage case temperature
-65°C to +150°C
Power supply voltage
-0.3 V to +7.0 V
Logic input voltage
-0.3 V to +5.5 V
Receiver differential input
±10 V
Receiver input voltage (common mode)
±5 V
Driver peak output current
600 mA
Total package power dissipation over the full operating
case temperature rise
Maximum junction to case temperature
2 Watts
(Note: Normal operation conditions require one transceiver on and the
other off.)
10°C
Thermal resistance – junction to case
5°C/W
Electrical Characteristics — Driver Section
Input Characteristics, TX DATA in or TX DATA in (Notes 2 & 3 apply)
Parameter
Condition Symbol Min Typ
"0" Input Current
"1" Input Current
"0" Input Voltage
"1" Input Voltage
VIN = 0.4 V
VIN = 2.7 V
IILD
IIHD
VILD
VIHD
-0.2
1
2.0
Max
-0.4
40
0.7
Unit
mA
µA
V
V
Inhibit Characteristics
"0" Input Current
"1" Input Current
"0" Input Voltage
"1" Input Voltage
Delay from TX inhibit, (0¡1) to inhibited output
Delay from TX inhibit, (1¡0) to active output
Differential output noise, inhibit mode
Differential output impedance (inhibited)
VIN=0.4V
VIN=2.7V
Note 1
IILI
IIHI
VILI
VIHI
tDXOFF
tDXON
VNOI
ZOI
-0.2 -0.4
1.0 40
0.7
2.0
250 350
150 250
2
10
2K
mA
µA
V
V
nS
nS
mVP-P
Ω
Output Characteristics
Differential output level
Rise and fall times(10% to 90% of P-P output)
Output offset at point A-A' on Figure 5, 2.5µS
after midpoint crossing of the parity bit of the
last word of a 660µS message
Delay from 50% point of TX DATA or TX DATA
input to zero crossing of differential signal
RL=35 Ω
RL=35 Ω
VO
tr
VOS
tDTX
6
7.5
9
100 200 300
VP-P
nS
± 90 mV peak
120 250
nS
Note 1. Power on or off, measured from 75KHz to 1MHz at point A-A' and transformer self impedance of 3KΩ
minimum
Aeroflex Circuit Technology
3
SCD4455 REV A 1/29/98 Plainview NY (516) 694-6700
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