CY7B991V
3.3V RoboClock®
Document Number: 38-07141 Rev. *D
Page 11 of 13
Switching Characteristics – 7 Option
Over the Operating Range [2, 11]
Parameter
Description
CY7B991V–7
Unit
Min
Typ
Max
fNOM
Operating Clock
Frequency in MHz
FS = LOW[1, 2]
15
30
MHz
FS = MID[1, 2]
25
50
FS = HIGH[1, 2]
40
80
tRPWH
REF Pulse Width HIGH
5.0
ns
tRPWL
REF Pulse Width LOW
5.0
ns
tU
Programmable Skew Unit
See Table 2
tSKEWPR
Zero Output Matched Pair Skew (XQ0, XQ1)[14, 15]
0.1
0.25
ns
tSKEW0
Zero Output Skew (All Outputs)[14, 16]
0.3
0.75
ns
tSKEW1
Output Skew (Rise-Rise, Fall-Fall, Same Class Outputs)[13, 17]
0.6
1.0
ns
tSKEW2
Output Skew (Rise-Fall, Nominal-Inverted, Divided-Divided)[14, 18]
1.0
1.5
ns
tSKEW3
Output Skew (Rise-Rise, Fall-Fall, Different Class Outputs)[14, 18]
0.7
1.2
ns
tSKEW4
Output Skew (Rise-Fall, Nominal-Divided, Divided-Inverted)[14, 18]
1.2
1.7
ns
tDEV
Device-to-Device Skew[13, 19]
1.65
ns
tPD
Propagation Delay, REF Rise to FB Rise
–0.7
0.0
+0.7
ns
tODCV
Output Duty Cycle Variation[19]
–1.2
0.0
+1.2
ns
tPWH
Output HIGH Time Deviation from 50%[20]
3ns
tPWL
Output LOW Time Deviation from 50%[20]
3.5
ns
tORISE
Output Rise Time[20, 21]
0.15
1.5
2.5
ns
tOFALL
Output Fall Time[20, 21]
0.15
1.5
2.5
ns
tLOCK
PLL Lock Time[22]
0.5
ms
tJR
Cycle-to-Cycle Output
Jitter
RMS[12]
25
ps
Peak-to-Peak[12]
200
ps
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