Cypress CY7B991 - Manual (Page 10)

CY7B991
CY7B992
Document Number: 38-07138 Rev. *B Page 10 of 19
Switching Characteristics
Over the Operating Range
[2, 13]
(continued)
CY7B991–7 CY7B992–7
Parameter Description Min Typ Max Min Typ Max Unit
f
NOM
Operating Clock
Frequency in MHz FS = LOW
[1, 2]
15 30 15 30 MHz
FS = MID [1, 2] 25 50 25 50
FS = HIGH
[1, 2]
40 80 40 80
[15]
t
RPWH
REF Pulse Width HIGH 5.0 5.0 ns
t
RPWL
REF Pulse Width LOW 5.0 5.0 ns
t
U
Programmable Skew Unit See Table 1
t
SKEWPR
Zero Output Matched-Pair Skew
(XQ0, XQ1)
[16, 17]
0.1 0.25 0.1 0.25 ns
t
SKEW0
Zero Output Skew (All Outputs) [16, 18] 0.3 0.75 0.3 0.75 ns
t
SKEW1
Output Skew (Rise-Rise, Fall-Fall, Same
Class Outputs)
[16, 19]
0.6 1.0 0.6 1.0 ns
t
SKEW2
Output Skew (Rise-Fall, Nominal-Inverted,
Divided-Divided)
[16, 19]
1.0 1.5 1.0 1.5 ns
t
SKEW3
Output Skew (Rise-Rise, Fall-Fall, Different
Class Outputs)
[16, 19]
0.7 1.2 0.7 1.2 ns
t
SKEW4
Output Skew (Rise-Fall, Nominal-Divided,
Divided-Inverted)
[16, 19]
1.2 1.7 1.2 1.7 ns
t
DEV
Device-to-Device Skew [14, 22] 1.65 1.65 ns
t
PD
Propagation Delay, REF Rise to FB Rise –0.7 0.0 +0.7 –0.7 0.0 +0.7 ns
t
ODCV
Output Duty Cycle Variation [22] –1.2 0.0 +1.2 –1.5 0.0 +1.5 ns
t
PWH
Output HIGH Time Deviation from 50%
[23, 24]
3 5.5 ns
t
PWL
Output LOW Time Deviation from 50%
[23, 24]
3.5 5.5 ns
t
ORISE
Output Rise Time [23, 25] 0.15 1.5 2.5 0.5 3.0 5.0 ns
t
OFALL
Output Fall Time
[23, 25]
0.15 1.5 2.5 0.5 3.0 5.0 ns
t
LOCK
PLL Lock Time
[26]
0.5 0.5 ms
t
JR
Cycle-to-Cycle Output
Jitter RMS [14] 25 25 ps
Peak-to-Peak
[14]
200 200 ps
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