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CY2907
Document #: 38-07137 Rev. **
Page 5 of 10
Switching Characteristics at 5.0V Commercial[4]
Parameter
Output[6]
Description
Test Conditions
Min.
Max.
Unit
tR
CLKA
Output Rise Time 0.8V to 2.0V
15-pF Load
1.40
ns
tF
CLKA
Output Fall Time 2.0V to 0.8V
15-pF Load
1.00
ns
tR
CLKA
Output Rise Time 20% to 80%
15-pF Load
3.5
ns
tF
CLKA
Output Fall Time 80% to 20%
15-pF Load
2.5
ns
tD
CLKA
Duty Cycle
15-pF Load at 1.4V
45.0
55.0
%
FI
XTALIN
Input Frequency
Crystal Oscillator
10
25
MHz
FI
XTALIN
Input Frequency
External Input Clock[7]
1
30
MHz
FO
CLKA
Output Frequency
CY2907, 15-pF Load
0.5
130.0
MHz
CY2907F, 15-pF Load
0.5
100.0
MHz
tJIS
CLKA
Jitter (One Sigma)
20 MHz to 130 MHz
150
ps
tJIS
CLKA
Jitter (One Sigma)
14 MHz to 20 MHz
200
ps
tJIS
CLKA
Jitter (One Sigma)
Less than 14 MHz
1
%
tJAB
CLKA
Jitter (Absolute)
20 MHz to 130 MHz
–250
+ 250
ps
tJAB
CLKA
Jitter (Absolute)
14 MHz to 20 MHz
–500
+ 500
ps
tJAB
CLKA
Jitter (Absolute)
Less than 14 MHz
3
%
tPU
Power-up Time
18
ms
tFT
CLKA
Transition Time
8 MHz to 66.6 MHz
13
ms
Switching Characteristics at 3.3V Commercial[4]
Parameter
Output[6]
Description
Test Conditions
Min.
Max.
Unit
tR
CLKA
Output Rise Time 20% to 80%
15-pF Load
3.5
ns
tF
CLKA
Output Fall Time 80% to 20%
15-pF Load
2.5
ns
tD
CLKA
Duty Cycle
15-pF Load at 1.4V
40.0
53.0
%
FI
XTALIN
Input Frequency
Crystal Oscillator
10
25
MHz
FI
XTALIN
Input Frequency
External Input Clock[7]
130
MHz
FO
CLKA
Output Frequency
CY2907, 15-pF Load
0.5
100.0
MHz
CY2907F, 15-pF Load
0.5
80.0
MHz
tJIS
CLKA
Jitter (One Sigma)
25 MHz to 100 MHz
150
ps
tJIS
CLKA
Jitter (One Sigma)
14 MHz to 25 MHz
200
ps
tJIS
CLKA
Jitter (One Sigma)
Less than 14 MHz
1
%
tJAB
CLKA
Jitter (Absolute)
25 MHz to 120 MHz
–250
+250
ps
tJAB
CLKA
Jitter (Absolute)
14 MHz to 25 MHz
–500
+500
ps
tJAB
CLKA
Jitter (Absolute)
Less than 14 MHz
3
%
tPU
Power-up Time
18
ms
tFT
CLKA
Transition Time
8 MHz to 66.6 MHz
13
ms
Notes:
6.
REFCLK output can also be configured to be driven by the PLL, in which case the above characteristics are valid.
7.
Please refer to the application note “Crystal Oscillator Topics” when using an external reference clock as an input frequency source.
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