CY22381 Cypress Semiconductor, CY22381 Datasheet - Page 5

• Manufacturer Part Number: CY22381
• Description: Three-PLL General Purpose FLASH Programmable Clock Generator
• Manufacturer: Cypress Semiconductor

Document #: 38-07012 Rev. *D
Switching Characteristics
Switching Waveforms
Notes:
1/t
t
t
t
t
t
t
Output Three-State Timing
All Outputs, Duty Cycle and Rise/Fall Time
Parameter
CLK Output Jitter
4. Guaranteed to meet 20% – 80% output thresholds and duty cycle specifications.
5. Reference Output duty cycle depends on XTALIN duty cycle.
6. Jitter varies significantly with configuration. Reference Output jitter depends on XTALIN jitter and edge rate.
2
3
4
5
6
7
THREE-STATE
1
OUTPUT
OUTPUTS
OUTPUT
CLK
OE
ALL
Output Frequency
Output Duty Cycle
Rising Edge Slew Rate
Falling Edge Slew Rate
Output Three-state Timing
Clock Jitter
Lock Time
[3]
[3, 6]
Name
t
3
t
5
[3, 4]
[3, 5]
[3]
[3]
[3]
t
6
t
2
Clock output limit, Commercial
Clock output limit, Industrial
Duty cycle for outputs, defined as t
Fout < 100 MHz, divider >= 2, measured
at V
Duty cycle for outputs, defined as t
Fout > 100 MHz or divider = 1, measured
at V
Output clock rise time, 20% to 80% of V
Output clock fall time, 20% to 80% of V
Time for output to enter or leave
three-state mode after SHUTDOWN/OE
switches
Peak-to-peak period jitter, CLK outputs
measured at V
PLL Lock Time from Power-up
DD
DD
/2
/2
t
1
t
4
Description
DD
/2
t
5
2
2
÷ t
÷ t
DD
DD
1
1
,
,
Min.
45%
40%
0.75
0.75
–
–
–
–
–
Typ.
50%
50%
150
200
1.4
1.4
1.0
–
–
Max.
55%
60%
166
CY22381
200
300
–
–
–
3
Page 5 of 8
Unit
MHz
MHz
V/ns
V/ns
ms
ns
ps