Multicore Fixed and Floating-Point System-on-Chip
Copyright 2012 Texas Instruments Incorporated
TMS320C6670 Peripheral Information and Electrical Specifications
141
SPRS689D—March 2012
TMS320C6670
Figure 7-19
Main PLL Controller/SRIO/HyperLink/PCIe Clock Input Timing
Figure 7-20
Main PLL Transition Time
5
tj(PCIECLKN)
Jitter, RMS PCIECLKN
4 ps, RMS
5
tj(PCIECLKP)
Jitter, RMS PCIECLKP
4 ps, RMS
End of Table 7-26
1 See the Hardware Design Guide for KeyStone Devices in
2.9 ‘‘Related Documentation from Texas Instruments’’ on page 66
for detailed recommendations.
2 If AIF2 is being used then SYSCLK(N|P) can be programmed only to fixed values, if AIF2 is not being used then any value in the range between the min and max values can
be used.
3 If AIF2 is used then the Max allowed jitter on SYSCLK(N|P) is 4ps RMS
Table 7-26
Main PLL Controller/SRIO/HyperLink/PCIe Clock Input Timing Requirements
(1)
(see
Figure 7-19
and
Figure 7-20
)
No.
Min
Max
Unit
4
3
2
1
5
<
CLK
_N
AM
E>
CLK
N
<
CLK
_N
AM
E>
CLKP
peak-to-peak differential input
v
oltage (250
m
V to 2 V)
250
m
V peak-to-peak
0
T = 50 ps
m
in to 350 ps
m
ax (10% to 90 %)
for the 250
m
V peak-to-peak centered at
z
ero crossing
R
Содержание TMS320C6670
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