PI6C991J Ver la hoja de datos (PDF) - Pericom Semiconductor
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PI6C991J Datasheet PDF : 9 Pages
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PI6C991
5V High Speed Programmable Skew
Clock Buffer - SuperClockTM
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Switching Characteristics over the Operating Range(2,11)
Parameter
FNOM
Operating clock
Frequency in MHz
Description
FS = LOW(1,2)
FS = MID(1,2)
FS = HIGH(1,2,3)
PI6C991-2
PI6C991-5
Min. Typ. Max. Min. Typ. Max.
15
30 15
30
25
50 25
50
40
80 40
80
PI6C991
Min. Typ. Max.
15
30
25
50
40
80
tRPWH
tRPWL
tU
tSKEWPR
tSKEW0
tSKEW1
tSKEW2
tSKEW3
tSKEW4
tDEV
tPD
tODCV
tPWH
tPWL
tORISE
tOFALL
tLOCK
tJR
REF Pulse Width HIGH
REF Pulse Width LOW
5.0
5.0
5.0
Programmable Skew Unit
Zero Output Matched-Pair Skew (xQ0, xQ1)(13,14)
Zero Output Skew (All Outputs)(13,15)
Output Skew (Rise-Rise, Fall-Fall, Same Class Outputs)(13,17)
Output Skew (Rise-Fall, Nominal-Inverted, Divided-Divided)(13,17)
Output Skew (Rise-Rise, Fall-Fall, Different Class Outputs)(13,17)
Output Skew (Rise-Fall, Nominal-Divided, Divided-Inverted)(13,17)
Device-to-Device Skew(12,18)
0.05 0.20
0.10 0.25
0.25 0.5
0.30 0.5
0.25 0.5
0.50 0.9
0.75
See Table 1
0.1 0.25
0.25 0.5
0.6 0.7
0.50 1.0
0.50 0.7
0.50 1.0
1.25
Propagation Delay, REF Rise to FB Rise
Output Duty Cycle Variation(19)
Output HIGH Time Deviation from 50%(20)
–0.25 0 0.25 –0.5 0
–0.65 0 0.65 –1.0 0
2.0
0.5 –0.7
1.0 –1.2
2.0
Output LOW Time Deviation from 50%(20)
1.5
2.5
Output Rise Time(21)
0.15 1.0 1.2 0.15 1.0 1.5 0.15
Output Fall Time(21)
0.15 1.0 1.2 0.15 1.0 1.5 0.15
PLL Lock Time(22)
0.5
0.5
Cycle-to Cycle Output
Jitter
RMS(12)
Peak-to-Peak(12)
25
25
200
200
0.1 0.25
0.3 0.75
0.6 1.0
1.0 1.5
0.7 1.2
1.2 1.7
1.65
0.0 +0.7
0.0 +1.2
3.0
3.5
1.5 2.5
1.5 2.5
0.5
25
200
7
PS8448 10/10/00
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