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參數資料
型號: CY28447LFXC
廠商: Silicon Laboratories Inc
文件頁數: 10/22頁
文件大?。?/td> 0K
描述: IC CLOCK CALISTOGA CK410M 72QFN
標準包裝: 240
類型: 時鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU 服務器
輸入: LVTTL,晶體
輸出: HCSL,LVCMOS
電路數: 1
比率 - 輸入:輸出: 3:21
差分 - 輸入:輸出: 無/是
頻率 - 最大: 200MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 72-VFQFN 裸露焊盤
供應商設備封裝: 72-QFN(10x10)
包裝: 托盤
CY28447
...................... Document #: 38-07724 Rev *C Page 18 of 22
TR / TF
SSCT and SSCC Rise and Fall Time
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 TimeVariation
125
ps
T
F
Fall Time Variation
125
ps
VHIGH
Voltage High
Math averages Figure 17
660
850
mV
VLOW
Voltage Low
Math averages Figure 17
–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 17. Measure SE
0.2
V
PCI/PCIF at 3.3V
TDC
PCI Duty Cycle
Measurement at 1.5V
45
55
%
TPERIOD
Spread Disabled PCIF/PCI Period
Measurement at 1.5V
29.99100
30.00900
ns
TPERIODSS
Spread Enabled PCIF/PCI Period, SSC Measurement at 1.5V
29.9910
30.15980
ns
TPERIODAbs
Spread Disabled PCIF/PCI Period
Measurement at 1.5V
29.49100
30.50900
ns
TPERIODSSAbs Spread Enabled PCIF/PCI Period, SSC Measurement at 1.5V
29.49100
30.65980
ns
THIGH
PCIF and PCI high time
Measurement at 2.4V
12.0
ns
TLOW
PCIF and PCI low time
Measurement at 0.4V
12.0
ns
TR / TF
PCIF/PCI rising and falling Edge Rate
Measured between 0.8V and 2.0V
1.0
4.0
V/ns
TSKEW
Any PCI clock to Any PCI clock Skew
Measurement at 1.5V
500
ps
TCCJ
PCIF and PCI Cycle to Cycle Jitter
Measurement at 1.5V
500
ps
LACC
PCIF/PCI Long Term Accuracy
Measured at crossing point VOX
300
ppm
DOT96 at 0.7V
TDC
DOT96T and DOT96C Duty Cycle
Measured at crossing point VOX
45
55
%
TPERIOD
DOT96T and DOT96C Period
Measured at crossing point VOX
10.41354
10.41979
ns
TPERIODAbs
DOT96T and DOT96C Absolute Period Measured at crossing point VOX
10.16354
10.66979
ns
TCCJ
DOT96T/C Cycle to Cycle Jitter
Measured at crossing point VOX
–250
ps
LACC
DOT96T/C Long Term Accuracy
Measured at crossing point VOX
300
ppm
TR / TF
DOT96T and DOT96C Rise and Fall
Time
Measured from VOL = 0.175 to
VOH = 0.525V
175
900
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 17
660
850
mV
VLOW
Voltage Low
Math averages Figure 17
–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 17. Measure SE
0.2
V
48_M at 3.3V
TDC
Duty Cycle
Measurement at 1.5V
45
55
%
AC Electrical Specifications (continued)
Parameter
Description
Condition
Min.
Max.
Unit
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