CY2308
Document Number: 38-07146 Rev. *H Page 7 of 15
t
4
Fall Time
[7, 8]
(–1H, –5H)
Measured between 0.8V and 2.0V,
30 pF load
1.25 ns
t
5
Output to Output Skew on
same Bank (–1, –2, –3, –4)
[7, 8]
All outputs equally loaded 200 ps
Output to Output Skew
(–1H, –5H)
All outputs equally loaded 200 ps
Output Bank A to Output Bank
B Skew (–1, –4, –5H)
All outputs equally loaded 200 ps
Output Bank A to Output Bank
B Skew (–2, –3)
All outputs equally loaded 400 ps
t
6
Delay, REF Rising Edge to
FBK Rising Edge
[78]
Measured at V
DD
/2 0 ±250 ps
t
7
Device to Device Skew
[7, 8]
Measured at V
DD
/2 on the FBK pins of
devices
–0700ps
t
8
Output Slew Rate
[7, 8]
Measured between 0.8V and 2.0V on
–1H, –5H device using Test Circuit 2
1– V/ns
t
J
Cycle to Cycle Jitter
[7, 8]
(–1, –1H, –4, –5H)
Measured at 66.67 MHz, loaded
outputs, 15 pF load
–75200ps
Measured at 66.67 MHz, loaded
outputs, 30 pF load
––200ps
Measured at 133.3 MHz, loaded
outputs, 15 pF load
––100ps
t
J
Cycle to Cycle Jitter
[7, 8]
(–2, –3)
Measured at 66.67 MHz, loaded
outputs
30 pF load
––400ps
Measured at 66.67 MHz, loaded
outputs
15 pF load
––400ps
t
LOCK
PLL Lock Time
[7, 8]
Stable power supply, valid clocks
presented on REF and FBK pins
––1.0ms
Switching Characteristics for Industrial Temperature Devices
(continued)
Parameter
[8]
Name Test Conditions Min Typ Max Unit
Switching Waveforms
t
1
t
2
1.4V 1.4V 1.4V
Figure 3. Duty Cycle Timing
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CY2308
Document Number: 38-07146 Rev. *H Page 8 of 15
Switching Waveforms
(continued)
1.4V
t
5
OUTPUT
OUTPUT
1.4V
Figure 5. Output-Output Skew
V
DD
/2
t
6
INPUT
FBK
V
DD
/2
Figure 6. Input-Output Propagation Delay
V
DD
/2
V
DD
/2
t
7
FBK, Device 1
FBK, Device 2
Figure 7. Device-Device Skew
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CY2308
Document Number: 38-07146 Rev. *H Page 9 of 15
Typical Duty Cycle
[10]
and I
DD
Trends
[11]
for CY2308–1,2,3,4
Notes
10. Duty cycle is taken from typical chip measured at 1.4V.
11. I
DD
data is calculated from I
DD
= I
CORE
+ nCVf, where I
CORE
is the unloaded current.
(n = number of outputs; C = Capacitance load per output (F); V = Voltage Supply (V); f = frequency (Hz).
Duty Cycle Vs VDD
(for 30 pF Loads over Frequency - 3.3V, 25C)
40
42
44
46
48
50
52
54
56
58
60
3 3.13.23.33.43.53.6
VDD (V)
Duty Cycle (%)
33 MHz
66 MHz
100 MHz
Duty Cycle Vs VDD
(for 15 pF Loads over Frequency - 3.3V, 25C)
40
42
44
46
48
50
52
54
56
58
60
3 3.1 3.2 3.3 3.4 3.5 3.6
VDD (V)
Duty Cycle (%)
33 MHz
66 MHz
100 MHz
133 MHz
Duty Cycle Vs Frequency
(for 30 pF Loads over Temperature - 3.3V)
40
42
44
46
48
50
52
54
56
58
60
20 40 60 80 100 120 140
Frequency (MHz)
Duty Cycle (%)
-40C
0C
25C
70C
85C
Duty Cycle Vs Frequency
(for 15 pF Loads over Temperature - 3.3V)
40
42
44
46
48
50
52
54
56
58
60
20 40 60 80 100 120 140
Frequency (MHz)
Duty Cycle (%)
-40C
0C
25C
70C
85C
IDD vs Number of Loaded Outputs
(for 30 pF Loads over Frequency - 3.3V, 25C)
0
20
40
60
80
10 0
12 0
14 0
02468
Number of Loaded Outputs
33 MHz
66 MHz
100 M Hz
IDD vs Number of Loaded Outputs
(for 15 pF Loads over Frequency - 3.3V, 25C)
0
20
40
60
80
10 0
12 0
14 0
02468
Number of Loaded Outputs
33 M Hz
66 M Hz
100 MHz
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CY2308SXC-5HT

Mfr. #:
Manufacturer:
Cypress Semiconductor
Description:
Clock Buffer 3.3VZDB COM
Lifecycle:
New from this manufacturer.
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