TUSB1310A
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SLLSE32D–NOVEMBER 2010–REVISED MAY 2011
Table 5-1. Oscillator Specification (continued)
PARAMETER
MIN
TYP
MAX
UNITS
CONDITION
Reference clock TJ
25
psec
with JTF (total p-p)(2)(3)
Reference clock jitter
(absolute p-p)(4)
50
psec
(3) Calculated as 14.1 x RJ + DJ
(4) Absolute phase jitter (p-p)
5.2.3 Crystal
Either a 20-MHz, 25-MHz, 30-MHz, or 40-MHz crystal can be selected. A parallel, 20-pF load crystal
should be used if a crystal source is used.
Table 5-2. Crystal Specification
PARAMETER
Frequency tolerance
Frequency stability
Load capacitance
MIN
TYP
MAX
±50
±50
24
UNITS
ppm
ppm
pF
CONDITION
Operational temperature
1 year aging
12
20
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DESIGN GUIDELINES
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