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| MB507 Datasheet, PDF (4/8 Pages) Fujitsu Component Limited. – 1.6GHz TWO MODULUS PRESCALER | |||
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MB507
Sampling scope input point
for input waveform
C1
P.G.
50â¦
C2
VCC = +5.0V + 10%
C3
VCC
IN
SW
OUT
Sampling scope prober point
for output waveform
IN
RL
CL
MC GND
MC Input
C1 : 1000pF
C2 : 1000pF
C3 : 0.1µF
CL : 12pF (including scope and jig capacitance)
RL : 2Kâ¦
Figure 2. Test Circuit
TIMING CHART (2 MODULUS)
Example: Divide ratio = 128/129
128
129
IN
64
64
OUT
64 64 64 64
64
65
64 64 65 64 65 64 64
MC
tSET
tSET
Note: When divide of 129 is selected, positive pulse is applied by one to 65.
The typical set up time is 18 ns from the MC signal input to the timing of change of prescaler divide ratio.
4
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