ARX4868 Просмотр технического описания (PDF) - Aeroflex Corporation
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ARX4868
Aeroflex Corporation
ARX4868 Datasheet PDF : 6 Pages
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Figure 3 Transmitter (TX) Output Wave form
Figure 4 Transmitter (TX) Output offset
LAST BIT
tf*
90%
Magnified View
6.5V P-P MIN
8.5V P-P MAX
0 Volts
0 Volts
* OUTPUT OFFSET
* OUTPUT OFFSET
10%
2.5 µsec
tr*
* 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
Figure 6 Power Dissipation vs. Duty Cycle
(Per Channel)
TX DATA OUT
TX DATA OUT
RX DATA IN
RX DATA IN
N1:N2 52.5Ω
B
A
Ctr
tap
B’
A’
N1:N3 for
stub
coupling
52.5Ω
Transformer turns ratios:
N1:N2 = 1:1
N1:N3 = 1:0.71
Use Aeroflex 25T1553-1
4.0
3.5
3.0
2.5
(TYPICAL)
2.0
1.5
1.0
0.5
0
0 10 20 30 40 50 60 70 80 90 100
DUTY CYCLE, PERCENT
NOTES
1. Characteristics guaranteed by design, not production tested.
2. Measured from 75kHz to 1MHz at point A-A’ with transformer self impedance of 3KΩ minimum, power on or off
Model No.
ARX4808
ARX4808-2
ARX4868
ARX4868-2
Configurations and Ordering Information
DESC No.
TBA
TBA
TBA
TBA
Receiver Data level
Normally High
Normally High
Normally Low
Normally Low
Case
Plug In
Flat Pack
Plug In
Flat Pack
Aeroflex Circuit Technology
5
SCD4808 REV A 3/9/98 Plainview NY (516) 694-6700
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