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9FGU0631 Datasheet(PDF) 8 Page - Integrated Device Technology

Part No. 9FGU0631
Description  6-O/P 1.5V PCIe Gen 1-2-3 Clock Generator
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

9FGU0631 Datasheet(HTML) 8 Page - Integrated Device Technology

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6-O/P 1.5V PCIE GEN 1-2-3 CLOCK GENERATOR
8
OCTOBER 18, 2016
9FGU0631 DATASHEET
Electrical Characteristics–REF
Clock Periods–Differential Outputs with Spread Spectrum Disabled
Clock Periods–Differential Outputs with -0.5% Spread Spectrum Enabled
Clock Periods–Single-ended Outputs
TA = TAMB; Supply Voltages per normal operation conditions, See Test Loads for Loading Conditions
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Notes
Long Accuracy
ppm
see Tperiod min-max values
ppm
1,2
Clock period
Tperiod
25 MHz output
40
ns
2
Rise/Fall Slew Rate
trf1
Byte 3 = 1F, 20% to 80% of VDDREF
0.3
0.7
1.1
V/ns
1
Rise/Fall Slew Rate
trf1
Byte 3 = 5F, 20% to 80% of VDDREF
0.5
1.0
1.6
V/ns
1,3
Rise/Fall Slew Rate
trf1
Byte 3 = 9F, 20% to 80% of VDDREF
0.77
1.3
1.9
V/ns
1
Rise/Fall Slew Rate
trf1
Byte 3 = DF, 20% to 80% of VDDREF
0.84
1.4
2.0
V/ns
1
Duty Cycle
dt1X
VT = VDD/2 V
45
47.1
55
%
1,4
Duty Cycle Distortion
dtcd
VT = VDD/2 V, when driven by XIN/CLKIN_25 pin
0
2
4
%
1,5
Jitter, cycle to cycle
tjcyc-cyc
VT = VDD/2 V
51.2
250
ps
1,4
Noise floor
tjdBc1k
1kHz offset
-126
-105
dBc
1,4
Noise floor
tjdBc10k
10kHz offset to Nyquist
-139
-110
dBc
1,4
Jitter, phase
tjphREF
12kHz to 5MHz
1.11
3
ps
(rms)
1,4
1Guaranteed by design and characterization, not 100% tested in production.
3 Default SMBus Value
4 When driven by a crystal.
5 X2 should be floating.
2 All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is trimmed to 25.00 MHz
0
1 Clock
1us
0.1s
0.1s
0.1s
1us
1 Clock
-c2c jitter
AbsPer
Min
-SSC
Short-Term
Average
Min
- ppm
Long-Term
Average
Min
0 ppm
Period
Nominal
+ ppm
Long-Term
Average
Max
+SSC
Short-Term
Average
Max
+c2c jitter
AbsPer
Max
DIF
100.00
9.94900
9.99900
10.00000
10.00100
10.05100
ns
1,2
Notes
Measurement Window
Units
SSC OFF
Center
Freq.
MHz
1 Clock
1us
0.1s
0.1s
0.1s
1us
1 Clock
-c2c jitter
AbsPer
Min
-SSC
Short-Term
Average
Min
- ppm
Long-Term
Average
Min
0 ppm
Period
Nominal
+ ppm
Long-Term
Average
Max
+SSC
Short-Term
Average
Max
+c2c jitter
AbsPer
Max
DIF
99.75
9.94906
9.99906
10.02406
10.02506
10.02607
10.05107
10.10107
ns
1,2
1Guaranteed by design and characterization, not 100% tested in production.
2 All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is trimmed to 25.00 MHz
Measurement Window
Units
SSC ON
Center
Freq.
MHz
Notes
1 Clock
1us
0.1s
0.1s
0.1s
1us
1 Clock
-c2c jitter
AbsPer
Min
-SSC
Short-Term
Average
Min
- ppm
Long-Term
Average
Min
0 ppm
Period
Nominal
+ ppm
Long-Term
Average
Max
+SSC
Short-Term
Average
Max
+c2c jitter
AbsPer
Max
REF
25.000
39.79880
39.99880
40.00000
40.00120
40.20120
ns
1,2
Measurement Window
Units Notes
SSC OFF
Center
Freq.
MHz


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