ACT4419 查看數據表（PDF） - Aeroflex Corporation
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ACT4419 Datasheet PDF : 6 Pages
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Figure 3 – Transmitter (TX) Output Amplitude
vs Control Voltage
Figure 4 – Transmitter (TX) Output Offset
VP-P @ B–B'
7.5
6.75
6
Slope = 0.75 VP-P/Vdc for 10V
Slope = 1.5 VP-P/Vdc for 5V
5.25
4.5
Typical
3.75
0 volts
7.5
3
6
2.25
4.5
1.5
3
.75
0
01
234567
1.5
Vdc
8 9 10
CONTROL VOLTAGE
LAST BIT
Magnified View
OUTPUT OFFSET*
OUTPUT OFFSET*
2.5 µsec
*Offset measured at point A-A’ in Fig 5
Figure 5 – Typical Transformer Connection
70Ω
70Ω
ZO
TX DATA OUT
D.U.T
TX DATA OUT
RX DATA IN
RX DATA IN
1:2.5 55Ω
PB
A
Center
Tap
P’ B’
A’
55Ω
1:1.77 for
stub
coupling
Transformer
Use Technitrol 1553-45 or Equivalent
Figure 6 – Power Dissipation vs. Duty Cycle
1600
1400
1200
1000
Maximum
800
Typical
600
400
200
0
0 10 20 30 40 50 60 70 80 90 100
DUTY CYCLE – PERCENT
Note: Vcc = 5 Volts, Vbus (pt A-A') at 7.5 Volts P-P
Aeroflex Circuit Technology
5
SCD4419 REV B 10/21/99 Plainview NY (516) 694-6700
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