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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%, TA = 0°C to +70°C and CL = 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
XIN
20
50
80
%
CDCout
Output Clock Duty Cycle
SSCLK and REFCLK @ 1.5V
45
50
55
%
CCJss
Cycle-to-Cycle Jitter
SSCLK; FIN = FOUT = 8–32 MHz
250
350
ps
CCJref
Cycle-to-Cycle Jitter
REFCLK; FIN = FOUT = 8–32 MHz
275
375
ps
200
210
220
230
240
250
260
270
280
290
300
8
1 21 62 02 42 83 2
F r e q ue nc y ( M H z )
REF C L K CY2 5 8 18
S S C L K C Y25 818
REF C L K CY2 5 8 19
S S CL K CY2 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)
12 MHz
32.0 MHz
Figure 3. Bandwidth% vs. Temperature
10
11
12
13
14
15
16
17
18
19
20
8
12
16
2 0
2 42 83 2
F r e q ue nc y ( M H z )
C Y 25819
16 - 32 M H z
C Y 25818
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)
CY25819@32 MHz
CY25818@8.0 MHz
Figure 5. Bandwidth% vs. Vdd
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