AD9547BCPZ(Rev0) Просмотр технического описания (PDF) - Analog Devices
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AD9547BCPZ Datasheet PDF : 104 Pages
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AD9547
REFERENCE INPUTS (REFA/REFAA, REFB/REFBB)
Table 8.
Parameter
DIFFERENTIAL OPERATION
Frequency Range
Sinusoidal Input
LVPECL Input
LVDS Input
Minimum Input Slew Rate
Common-Mode Input Voltage
Differential Input Voltage
Sensitivity
Min
10
0.001
0.001
40
Typ Max
750
750
750
2
±65
Input Resistance
Input Capacitance
Minimum Pulse Width High
620
Minimum Pulse Width Low
620
SINGLE-ENDED OPERATION
Frequency Range (CMOS)
10
Minimum Input Slew Rate
40
Input Voltage High (VIH)
1.2 V to 1.5 V Threshold Setting 0.9
1.8 V to 2.5 V Threshold Setting 1.2
3.0 V to 3.3 V Threshold Setting 1.9
Input Voltage Low (VIL)
1.2 V to 1.5 V Threshold Setting
1.8 V to 2.5 V Threshold Setting
3.0 V to 3.3 V Threshold Setting
Input Resistance
Input Capacitance
Minimum Pulse Width High
1.5
Minimum Pulse Width Low
1.5
25
3
250
0.27
0.5
1.0
45
3
Unit Test Conditions/Comments
MHz
MHz
MHz
V/μs Minimum limit imposed for jitter performance
V
Internally generated
mV This is the minimum voltage required across the pins to
ensure switching between logic states; the instantaneous
voltage on either pin must not exceed the supply rails
kΩ
pF
ps
ps
MHz
V/μs Minimum limit imposed for jitter performance
V
V
V
V
V
V
kΩ
pF
ns
ns
REFERENCE MONITORS
Table 9.
Parameter
Min
Typ
REFERENCE MONITOR
Loss of Reference Detection Time
Frequency Out-of-Range Limits 9.54 × 10−7
TIMERS
Validation Timer
0.001
Redetect Timer
0.001
Max
1.2
0.1
65.535
65.535
Unit Test Conditions/Comments
NPDP NPDP = nominal phase detector period (NPDP = fREF/R)1
Δf/fREF Programmable (lower bound subject to quality of SYSCLK)
sec Programmable in 1 ms increments
sec Programmable in 1 ms increments
1 fREF is the frequency of the active reference; R is the frequency division factor determined by the R divider.
Rev. 0 | Page 7 of 104
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