AM3359_1211 Datasheet, PDF (101/222 Pages) Texas Instruments – AM335x ARM Cortex-A8 Microprocessors (MPUs)

AM3359, AM3358, AM3357
AM3356, AM3354, AM3352
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SPRS717D – OCTOBER 2011 – REVISED MAY 2012
NAME
C_pkg
P_xtal
t_sX
Table 4-3. OSC0 Crystal Circuit Characteristics
DESCRIPTION
Shunt capacitance of
package
ZCE package
ZCZ package
The actual values of the ESR, f_xtal, and C_L should be used to yield a
typical crystal power dissipation value. Using the maximum values
specified for ESR, f_xtal, and C_L parameters yields a maximum power
dissipation value.
Start-up time
MIN TYP
MAX
0.01
0.01
P_xtal = 0.5 ESR (2 π f_xtal
C_L VDDS_OSC)²
1.5
UNIT
pF
pF
ms
VDD_CORE (min.)
VSS
VDDS_OSC (min.)
VDD_CORE
VDDS_OSC
VSS
XTALOUT
t_sX
Time
Figure 4-9. OSC0 Start-up Time
Copyright © 2011–2012, Texas Instruments Incorporated
Power and Clocking 101
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