CY25818/19
Document #: 38-07362 Rev. *B
Page 4 of 7
Characteristics Curves
The following curves demonstrate the characteristic behavior
of the CY25818/19 when tested over a number of environ-
mental and application specific parameters. These are typical
performance curves and are not meant to replace any
parameter specified in
Table 4
and
Table 5
.
Notes:
1. Single Power Supply: The voltage on any input or I/O pin cannot exceed the power pin during power-up.
2. Operation at any Absolute Maximum Rating is not implied.
Table 5. Timing Electrical Characteristics
Vdd
= 3.3V ±10%, T
A
= 0°C to +70°C and C
L
= 15 pF (unless otherwise noted)
Parameter
Description
Conditions
Min.
Typ.
Max.
Unit
ICLKFR1
Input Frequency Range
CY25818
8
–
16
MHz
ICLKFR2
Input Frequency Range
CY25819
16
–
32
MHz
trise1
Clock Rise Time
SSCLK and REFCLK, 0.4V to 2.4V
2.0
3.0
4.0
ns
tfall1
Clock Fall Time
SSCLK and REFCLK, 0.4V to 2.4V
2.0
3.0
4.0
ns
CDCin
Input Clock Duty Cycle
X
IN
20
50
80
%
CDCout
Output Clock Duty Cycle
SSCLK and REFCLK @ 1.5V
45
50
55
%
CCJss
Cycle-to-Cycle Jitter
SSCLK; F
IN
= F
OUT
= 8–32 MHz
250
350
ps
CCJref
Cycle-to-Cycle Jitter
REFCLK; F
IN
= F
OUT
= 8–32 MHz
275
375
ps
2 0 0
2 1 0
2 2 0
2 3 0
2 4 0
2 5 0
2 6 0
2 7 0
2 8 0
2 9 0
3 0 0
8
1 2
1 6
2 0
2 4
2 8
3 2
F r e q u e n c y ( M H z )
CCJ (p
s)
R EF C L K C Y2 5 8 18
S S C L K C Y2 5 8 18
R EF C L K C Y2 5 8 19
S S C L K C Y2 5 8 19
Figure 2. CCJ (ps) vs. Frequency (MHz)
1.75
2
2.25
2.5
2.75
-40
-25
-10
5
20
35
50
65
80
95
110
125
Temp (C)
BW
%
12 MHz
32.0 MHz
Figure 3. Bandwidth% vs. Temperature
10
11
12
13
14
15
16
17
18
19
2 0
8
12
16
2 0
2 4
2 8
3 2
F r e q u e n c y ( M H z )
IDD(m
A
)
C Y 2 5 8 19
16 - 3 2 M H z
C Y 2 5 8 18
8 - 16 M H z
Figure 4. IDD (mA) vs. Frequency (MHz)
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3
3.1
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
VDD (volts)
BW
(
%
)
CY25819@32 MHz
Figure 5. Bandwidth% vs. Vdd
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