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AM4376 Datasheet(PDF) 132 Page - Texas Instruments

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Part # AM4376
Description  AM437x Sitara??Processors
PDF  261 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AM4376 Datasheet(HTML) 132 Page - Texas Instruments

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VDDS_OSC
XTALOUT
t
sX
VDD_CORE (min.)
Time
VSS
VDDS_OSC (min.)
VSS
VDD_CORE
AM4376, AM4377, AM4378, AM4379
SPRS851B – JUNE 2014 – REVISED APRIL 2015
www.ti.com
Table 5-13. OSC0 Crystal Circuit Requirements
NAME
DESCRIPTION
MIN
TYP
MAX
UNIT
Crystal parallel resonance
Fundamental mode oscillation only
19.2, 24.0,
frequency
25.0, or
MHz
26.0
fxtal
Crystal frequency stability
-50.0
50.0
ppm
and tolerance
CC1
C1 capacitance
12.0
24.0
pF
CC2
C2 capacitance
12.0
24.0
pF
Cshunt
Shunt capacitance
5.0
pF
Crystal effective series
fxtal = 19.2 MHz, oscillator has nominal
54.4
resistance
negative resistance of 272
Ω and worst-
case negative resistance of 163
Ω
fxtal = 24.0 MHz, oscillator has nominal
48.0
negative resistance of 240
Ω and worst-
case negative resistance of 144
Ω
ESR
Ω
fxtal = 25.0 MHz, oscillator has nominal
46.6
negative resistance of 233
Ω and worst-
case negative resistance of 140
Ω
fxtal = 26.0 MHz, oscillator has nominal
45.3
negative resistance of 227
Ω and worst-
case negative resistance of 137
Ω
Table 5-14. OSC0 Crystal Circuit Characteristics
NAME
DESCRIPTION
MIN
TYP
MAX
UNIT
Shunt capacitance of
ZDN package
0.01
Cpkg
pF
package
The actual values of the ESR, fxtal, and CL should be used to yield a
Pxtal = 0.5 ESR (2 π fxtal
typical crystal power dissipation value. Using the maximum values
CL VDDS_OSC)
2
Pxtal
specified for ESR, fxtal, and CL parameters yields a maximum power
dissipation value.
tsX
Start-up time
1.5
ms
Figure 5-11. OSC0 Start-up Time
132
Specifications
Copyright © 2014–2015, Texas Instruments Incorporated
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Product Folder Links: AM4376 AM4377 AM4378 AM4379



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