44409
Rev.
1.70
October 10
AMD SP5100 Databook
System Clock Specifications
63
T62
T63
T64
T65
T61
V
IH
V
IL
Figure 9-1: Timing Labels for AC Specifications of the SP5100 Clocks
T 62
T 64
T 65
Vcross max
Vcross min
T 63
T 61
Figure 9-2: Timing Labels for AC Specifications of the SP5100 Diff Clocks
T
RISE
T
FALL
PCIPCIE_CLKN
V
IH
V
IL
T
R
ISE
T
F
ALL
Figure 9-3: SP5100 Diff Clocks Rise and Fall Time Measurement
Table 9-4: 48MHz USB Clock AC Specifications
48 MHz USB
Symbol
Parameter
Min
Max
Units
Note
T61
Clock Period
20.831
20.836
ns
1
T62
Clock/Data rise time
0.5
3.0
ns
2
T63
Clock/Data fall time
0.5
3.0
ns
T64
Clock high period
8.8
11
ns
T65
Clock low period
7.7
10
ns