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SPRS717F –OCTOBER 2011–REVISED APRIL 2013
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Table 4-3. OSC0 Crystal Circuit Characteristics
NAME
DESCRIPTION
MIN
TYP
0.01
0.01
MAX
UNIT
pF
Cpkg
Shunt capacitance of
package
ZCE package
ZCZ package
pF
Pxtal
The actual values of the ESR, fxtal, and CL should be used to yield a
typical crystal power dissipation value. Using the maximum values
specified for ESR, fxtal, and CL parameters yields a maximum power
dissipation value.
Pxtal = 0.5 ESR (2 π fxtal
CL VDDS_OSC)2
tsX
Start-up time
1.5
ms
VDD_CORE (min.)
VDD_CORE
VSS
VDDS_OSC (min.)
VDDS_OSC
XTALOUT
VSS
tsX
Time
Figure 4-9. OSC0 Start-up Time
108
Power and Clocking
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