OSCOUT
OSCIN
OSCV
SS
Clock
Input
to PLL
NC
OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
www.ti.com
Figure 6-7. External 1.2V Clock Source
Table 6-3. OSCIN Timing Requirements
PARAMETER
MIN
MAX
UNIT
f
OSCIN
OSCIN frequency range (OSCIN)
12
50
MHz
t
c(OSCIN)
Cycle time, external clock driven on OSCIN
20
ns
t
w(OSCINH)
Pulse width high, external clock on OSCIN
0.4 t
c(OSCIN)
ns
t
w(OSCINL)
Pulse width low, external clock on OSCIN
0.4 t
c(OSCIN)
ns
t
t(OSCIN)
Transition time, OSCIN
0.25P or 10
(1)
ns
t
j(OSCIN)
Period jitter, OSCIN
0.02P
ns
(1)
Whichever is smaller. P = the period of the applied signal. Maintaining transition times as fast as possible is recommended to improve
noise immunity on input signals.
62
Peripheral Information and Electrical Specifications
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