參數(shù)資料
型號: CY28405-3
英文描述: Clocks and Buffers
中文描述: 時鐘和緩沖器
文件頁數(shù): 28/48頁
文件大?。?/td> 538K
代理商: CY28405-3
CY28405-2
Document #: 38-07511 Rev. *C
Page 12 of 16
T
R
/ T
F
XIN Rise and Fall Times
Measured between 0.3V
DD
and 0.7V
DD
As an average over 1
μ
s
duration
Over 150 ms
10.0
ns
T
CCJ
XIN Cycle to Cycle Jitter
500
ps
L
ACC
CPU at 0.7V
T
DC
T
PERIOD
T
PERIOD
T
PERIOD
T
SKEW
T
CCJ
T
R
/ T
F
Long Term Accuracy
300
ppm
CPUT and CPUC Duty Cycle
100-MHz CPUT and CPUC Period
133-MHz CPUT and CPUC Period
200-MHz CPUT and CPUC Period
Any CPUT/C to CPUT/C Clock Skew
CPUT/C Cycle to Cycle Jitter
CPUT and CPUC Rise and Fall Times
Measured at crossing point V
OX
Measured at crossing point V
OX
Measured at crossing point V
OX
Measured at crossing point V
OX
Measured at crossing point V
OX
Measured at crossing point V
OX
Measured from Vol = 0.175 to
Voh = 0.525V
Determined as a fraction of
2*(T
R
-T
F
)/(T
R
+T
F
)
45
55
%
ns
ns
ns
ps
ps
9.9970
7.4978
4.9985
10.003
7.5023
5.0015
100
125
175
700
ps
T
RFM
Rise/Fall Matching
20
%
T
R
T
F
V
HIGH
V
LOW
V
OX
V
OVS
V
UDS
V
RB
SRC
T
DC
T
PERIOD
Rise Time Variation
Fall Time Variation
Voltage High
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
125
125
850
550
ps
ps
mV
mV
mV
V
V
V
Math averages
Figure 7
Math averages
Figure 7
660
–150
250
–0.3
V
HIGH
+ 0.3
0.2
See
Figure 7
. Measure SE
SRCT and SRCC Duty Cycle
100 MHz SRCT and SRCC Period
Measured at crossing point V
OX
Measured at crossing point
V
OX
Measured at crossing point
V
OX
Measured at crossing point
V
OX
Measured at crossing point
V
OX
Measured from Vol= 0.175 to
Voh = 0.525V
Determined as a fraction of
2*(T
R
-T
F
)/(T
R
+T
F
)
45
55
%
9.9970
10.003
ns
T
PERIOD
200 MHz SRCT and SRCC Period
4.9985
5.0015
ns
L
ACC
Long Term Accuracy
300
ppm
T
CCJ
SRCT/C Cycle to Cycle Jitter
125
ps
T
R
/ T
F
SRCT and SRCC Rise and Fall Times
175
700
ps
T
RFM
Rise/Fall Matching
20
%
T
R
T
F
V
HIGH
V
LOW
V
OX
V
OVS
V
UDS
V
RB
Rise Time Variation
Fall Time Variation
Voltage High
Voltage Low
Crossing Point Voltage at 0.7V Swing
Maximum Overshoot Voltage
Minimum Undershoot Voltage
Ring Back Voltage
125
125
850
550
ps
ps
mV
mV
mV
V
V
V
Math averages
Figure 7
Math averages
Figure 7
660
–150
250
–0.3
V
HIGH
+ 0.3
0.2
See
Figure 7.
Measure SE
AC Electrical Specifications
(continued)
Parameter
Description
Condition
Min.
Max.
Unit
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