GTL2002 查看數據表（PDF） - Philips Electronics
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GTL2002 Datasheet PDF : 24 Pages
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Figure 15 shows that a driver capable of first reflected wave switching can propagate its transition through the GTL-TVC
device as a first reflected wave because, at 64 mA, the resistance is still low (~ 8 Ω at 2.5 V) and only 50 mA is required
to impose a 2.5 V transition into a 50 Ω line (the voltage doubles at the end to 5 V).
Caution: It may be necessary to include a resistor in series with the driver if its pull up is stronger than a first reflected
wave driver, to prevent over shoot and ringing in an unterminated transmission line.
20
VGref = 5v
IDDpass = 64ma
15
10
5
0
0
0.5
1
1.5
2
2.5
3
3.5
VSn (V)
Figure 15. Electrical Characteristics as a CBT like function, resistance – source voltage
with the gate at 5.0 V and 64 mA pass current.
20
VGref = 5v
IDDpass = 15ma
15
10
5
0
0
0.5
1
1.5
2
2.5
3
3.5
VSn (V)
Figure 16. Electrical Characteristics as a CBT like function, resistance – source voltage
with the gate at 5.0 V and 15 mA pass current.
12
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