MC1650 データシートの表示（PDF） - Motorola => Freescale
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MC1650 Datasheet PDF : 11 Pages
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MC1650 MC1651
FIGURE 4 — PROPAGATION DELAY (tpd) versus
INPUT PULSE AMPLITUDE AND CONSTANT OVERDRIVE
TEST CIRCUIT
Vin
Vref
VIH
50
Vref = Gnd
+
–
D
Q
1/2 Device
C
Q
Q
50
50
–2.0 V
POSITIVE PULSE DIAGRAM
Positive
Overdrive
Vref
Vin
PA
tpd
NEGATIVE PULSE DIAGRAM
Vin
Vref
PB
Negative
Overdrive
tpd
Q
50%
Q
Input Switching time is constant
at 1.5 ns (10% to 90%).
PROPAGATION DELAY versus PULSE AMPLITUDE
5.0
4.0 Overdrive Constant @ 100 mV
Positive Going Pulse
Negative Going Pulse
3.0
2.0
MC1650
MC1651
1.0
tpd referenced to PA, PB = 20 mV
0
0.01 0.02
0.05 0.1
0.2
0.5
1.0
2.5
10
PULSE AMPLITUDE PA, PB (VOLTS)
PROPAGATION DELAY versus OVERDRIVE
PA, PB, Constant @ 100 mV
Positive Overdrive (PA)
2.0
Negative Overdrive (PB)
tpd is measured from Vref on the input
MC1650
to 50% on the output.
1.0 MC1651
tpd is referenced to 2.5 V overdrive.
0
0.01 0.02 0.04 0.07 0.1
0.2 0.3 0.5 0.7 1.0
2.5
10
OVERDRIVE (VOLTS)
MOTOROLA
4–340
MECL Data
DL122 — Rev 6
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