TDC CPUT and CPUC " />
參數(shù)資料
型號： CY28409OCT
廠商： Silicon Laboratories Inc
文件頁數(shù)： 5/16頁
文件大?。?/td> 0K
描述： IC CLOCK CK409GRANTSDALE 56TSSOP
標準包裝： 1,000
類型： *
PLL： 是
輸入： 晶體
輸出： 時鐘
電路數(shù)： 1
比率 - 輸入:輸出： 1:21
差分 - 輸入:輸出： 無/是
頻率 - 最大： 400MHz
除法器/乘法器： 是/無
電源電壓： 3.135 V ~ 3.465 V
工作溫度： 0°C ~ 70°C
安裝類型： *
封裝/外殼： *
供應商設備封裝： *
包裝： *
CY28409
......................Document #: 38-07445 Rev. *D Page 13 of 16
CPU at 0.7V
TDC
CPUT and CPUC Duty Cycle
Measured at crossing point VOX
45
55
%
TPERIOD
100-MHz CPUT and CPUC Period
Measured at crossing point VOX
9.9970
10.003
ns
TPERIOD
133-MHz CPUT and CPUC Period
Measured at crossing point VOX
7.4978
7.5023
ns
TPERIOD
200-MHz CPUT and CPUC Period
Measured at crossing point VOX
4.9985
5.0015
ns
TSKEW
Any CPUT/C to CPUT/C Clock Skew
Measured at crossing point VOX
–
100
ps
TCCJ
CPUT/C Cycle to Cycle Jitter
Measured at crossing point VOX
–
125
ps
TR / TF
CPUT and CPUC Rise and Fall Times Measured from VOL = 0.175 to VOH = 0.525V
175
700
ps
TRFM
Rise/Fall Matching
Determined as a fraction of 2*(TR – TF)/(TR + TF)–
20
%
T
R
Rise Time Variation
–
125
ps
T
F
Fall Time Variation
–
125
ps
VHIGH
Voltage High
Math averages Figure 11
660
850
mV
VLOW
Voltage Low
Math averages Figure 11
–150
–
mV
VOX
Crossing Point Voltage at 0.7V Swing
250
550
mV
VOVS
Maximum Overshoot Voltage
–
VHIGH + 0.3
V
VUDS
Minimum Undershoot Voltage
–0.3
–
V
VRB
Ring Back Voltage
See Figure 11. Measure SE
–
0.2
V
SRC
TDC
SRCT and SRCC Duty Cycle
Measured at crossing point VOX
45
55
%
TPERIOD
100 MHz SRCT and SRCC Period
Measured at crossing point VOX
9.9970
10.003
ns
TPERIOD
200 MHz SRCT and SRCC Period
Measured at crossing point VOX
4.9985
5.0015
ns
TCCJ
SRCT/C Cycle to Cycle Jitter
Measured at crossing point VOX
–
125
ps
LACC
SRCT/C Long Term Accuracy
Measured at crossing point VOX
–
300
ppm
TR / TF
SRCT and SRCC Rise and Fall Times Measured from VOL = 0.175 to VOH = 0.525V
175
700
ps
TRFM
Rise/Fall Matching
Determined as a fraction of 2*(TR – TF)/(TR + TF)–
20
%
T
R
Rise Time Variation
–
125
ps
T
F
Fall Time Variation
–
125
ps
VHIGH
Voltage High
Math averages Figure 11
660
850
mV
VLOW
Voltage Low
Math averages Figure 11
–150
–
mV
VOX
Crossing Point Voltage at 0.7V Swing
250
550
mV
VOVS
Maximum Overshoot Voltage
–
VHIGH + 0.3
V
VUDS
Minimum Undershoot Voltage
–0.3
–
V
VRB
Ring Back Voltage
See Figure 11. Measure SE
–
0.2
V
3V66
TDC
3V66 Duty Cycle
Measurement at 1.5V
45
55
%
TPERIOD
Spread Disabled 3V66 Period
Measurement at 1.5V
14.9955
15.0045
ns
TPERIOD
Spread Enabled 3V66 Period
Measurement at 1.5V
14.9955
15.0799
ns
THIGH
3V66 High Time
Measurement at 2.0V
4.9500
–
ns
TLOW
3V66 Low Time
Measurement at 0.8V
4.5500
–
ns
TR / TF
3V66 Rise and Fall Times
Measured between 0.8V and 2.0V
0.5
2.0
ns
TSKEW
Any 3V66 to Any 3V66 Clock Skew
Measurement at 1.5V
–
250
ps
TCCJ
3V66 Cycle to Cycle Jitter
Measurement at 1.5V
–
250
ps
PCI/PCIF
TDC
PCI Duty Cycle
Measurement at 1.5V
45
55
%
TPERIOD
Spread Disabled PCIF/PCI Period
Measurement at 1.5V
29.9910
30.0009
ns
TPERIOD
Spread Enabled PCIF/PCI Period
Measurement at 1.5V
29.9910
30.1598
ns
THIGH
PCIF and PCI high time
Measurement at 2.0V
12.0
–
ns
TLOW
PCIF and PCI low time
Measurement at 0.8V
12.0
–
ns
AC Electrical Specifications (continued)
Parameter
Description
Condition
Min.
Max.
Unit
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