MC1670L データシートの表示（PDF） - Motorola => Freescale
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MC1670L Datasheet PDF : 4 Pages
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CLOCK INPUT
300
MHZ-MAX
Q OR Q
OUTPUT
MC1670
FIGURE 1 — TOGGLE FREQUENCY WAVEFORMS
TA = 25°C
+1.11 V
+0.71 VBIAS
+0.31 V
600 MV MIN
The maximum toggle frequency of the MC1670 has been exceeded
when either:
1. The output peak-to-peak voltage swing falls below 600
millivolts,
OR
2. The device ceases to toggle (divide by two).
FIGURE 2 — MAXIMUM TOGGLE FREQUENCY (TYPICAL)
+1.05
+1.0
+0.95
+0.9
+0.85
TA = 25°C
VCC = +2.0 VDC
VEE = –3.2 VDC
+0.8
+0.75
+0.7
+0.65
+0.5
Figure 2 illustrates the variation in toggle frequency
with the dc offset voltage (VBias) of the input clock signal.
Figures 4 and 5 illustrate minimum clock pulse width
recommended for reliable operation of the MC1670.
+0.45
+0.4
+0.35
+0.3
+0.25
175
225
275
325
375
425
FTOG
(MHZ)
FIGURE 3 — TYPICAL MAXIMUM TOGGLE FREQUENCY
versus TEMPERATURE
400
350
300
250
–30
0
25
50
85
TA, AMBIENT TEMPERATURE (°C)
Temperature
–30°C
+25°C
+85°C
VBias
+0.66 Vdc
+0.71 Vdc +0.765 Vdc
Note: All power supply and logic levels are shown shifted 2.0 volts positive.
MECL Data
DL122 — Rev 6
4–357
MOTOROLA
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