Ultra Performance
MEMS Oscillator
Page 1 of 6
CMC253-SERIES
■ Ultra low phase jitter: 0.5ps ( 12 kHz to 20MHz )
■ LVCMOS/ LVTTL compatible output
■ SMD package 2.5 x 2.0 mm
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
CONDITION
Min.
VALUE
Typ.
Max.
80
1.8
2.5
2.8
3.3
29
31
-20
-40
-10
-20
-25
-50
-1.5
-5.0
1.89
2.75
3.08
3.63
31
33
+70
+85
+10
+20
+25
+50
1.5
5.0
150
30
31
10
70
7
6
1.5
0.5
1.5
2.0
70%
30%
100
2
250
10
10
2.0
1.0
2.0
3.0
UNIT
Frequency Range
f
0
Any Frequency between Frequency
range, accurate to
6 decimal places
Supply voltages between 2.5V and
3.3V can be supported in increments
of 0.1V
Vs = 1.8V,
f
0
=20MHz, no load
condition
Vs = 2.5V,2.8V and 3.3V
f
0
=20MHz,
no load condition
Extended Commercial
Industrial
Including First Year aging, initial
frequency tolerance at 25°C,
Frequency stability over temperature
range, supply variation, load variation
First year
10 years
1
1.71
2.25
2.52
2.97
MHz
V
V
V
V
mA
mA
C
°C
ppm
ppm
ppm
ppm
ppm
ppm
ms
mA
mA
ms
ms
ns
ps
ps
ps
Vs
Vs
kΩ
MΩ
Supply Voltage
Vs
Supply Current
Is
Operating Temperature
T
a
Frequency Stability
Δf/f
0
Δf/Δt
y
Δf/Δt
y
T
E/D
Long term stability, aging
Enable / Disable Time
f
0
=80MHz, for other frequencies,
T
E/D
=100ns+ 3 cycles
Vs=1.8V, E/D =GND, output is
weakly pulled down
Vs=2.5V,2.8Vor 3.3V, E/D =GND
output is weakly pulled down
STBY=GND,Vs=1.8V
STBY=GND,Vs=2.5V,2.8V or 3.3V
Output is weakly pulled down
Measured from the time Vs reaches
its rated minimum value
Measured from the time STBY pin
crosses 50% threshold
Enable / Disable Current
I
E/D
Standby Current
Startup Time
Resume Time
Rise/ Fall Time
RMS Phase Jitter
RMS Period Jitter
Input Voltage High
Input Voltage Low
Input pull-up impedance
Istby
T
ST
T res
Tr / Tf
J
PH
J
P
V
IH
V
IL
Z
in
C
L
= 15pF, 10% - 90% Vs
f
0
=10MHz,BW 12KHz to 20MHz
f
0
=75 MHz,Vs=2.5V,2.8V or 3.3V
f
0
=75 MHz, Vs=1.8V
Pin 1, E/D or STBY
Pin 1, E/D or STBY
Pin 1 E/D High or Low, STBY= High
STBY = Low
RALTRON ELECTRONICS
10400 N.W . 33
rd
St
Miam i, Florida 33172
U.S.A.
phone: +1-305-593-6033
fax: +1-305-594-3973
e-mail: sales@raltron.com
internet: http://www.raltron.com
Ultra Performance
MEMS Oscillator
Page 2 of 6
CMC253-SERIES
OUTPUT CHARACTERISTICS
VALUE
PARAMETER
SYMBOL
CONDITION
I
oh
= -3 mA ( Vs=1.8V )
I
oh
= -6 mA ( Vs= 2.5V, 2.8V or 3.3V )
I
ol
=3 mA ( Vs=1.8V )
I
ol
=6 mA ( Vs= 2.5V, 2.8V or 3.3V )
all Vs
Ta=25 °C
45
15
Min
0.9 Vs
Typ.
Max
UNIT
V
LVCMOS
V
OH
Output Levels
V
OL
Duty Cycle
Output Load
0.1Vs
55
V
%
pF
DC
C
L
Table 1. Rise/Fall Time vs. CLoad ( CL ), Vs=1.8V
Table 2. Rise/Fall Time vs. CLoad ( CL ), Vs=2.5V
CL
Drive
Strength
D0
D1
D2
D3 ,
default
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
5pF
@10% to
90%
0.51
0.66
0.77
0.82
0.86
0.88
0.92
0.97
1.01
1.07
1.22
1.49
1.59
1.76
2.19
2.62
3.27
4.38
6.50
12.45
15pF
(ns) typ.
1.09
1.15
1.20
1.24
1.29
1.34
1.41
1.50
1.64
1.88
2.10
2.28
2.59
3.01
3.52
4.25
5.30
7.05
10.27
17.68
30pF
45pF
60pF
CL
Drive
Strength
D0
D1
D2
D3
D4
D5
D6
D7
D8,
default
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
5pF
@10% to
90%
0.30
0.31
0.32
0.33
0.34
0.36
0.38
0.44
0.67
0.87
0.90
0.93
0.98
1.06
1.50
1.67
2.21
2.93
4.42
8.68
15pF
(ns) typ.
0.57
0.59
0.62
0.65
0.71
0.83
0.99
1.10
1.20
1.29
1.37
1.48
1.69
2.04
2.33
2.87
3.57
4.78
7.18
13.59
30pF
45pF
60pF
1.76
1.84
1.94
2.07
2.24
2.39
2.56
2.74
2.95
3.23
3.57
3.96
4.49
5.14
6.00
7.20
8.89
11.61
16.21
19.48
2.45
2.58
2.72
2.89
3.04
3.25
3.52
3.80
4.12
4.50
5.00
5.55
6.25
7.10
8.31
9.81
12.18
16.17
23.92
46.21
3.24
3.41
3.61
3.82
4.06
4.32
4.64
4.98
5.40
5.87
6.46
7.15
7.98
9.15
10.59
12.65
15.75
20.83
30.73
57.82
1.29
1.37
1.44
1.51
1.58
1.66
1.76
1.86
2.00
2.21
2.44
2.69
3.03
3.50
4.11
4.94
6.19
8.15
11.93
18.36
1.70
1.77
1.85
1.96
2.07
2.20
2.37
2.56
2.79
3.04
3.34
3.73
4.20
4.84
5.68
6.85
8.55
11.19
16.60
32.70
2.28
2.39
2.50
2.65
2.80
2.98
3.18
3.43
3.69
4.02
4.42
4.92
5.51
6.26
7.33
8.80
11.04
14.59
21.38
42.06
RALTRON ELECTRONICS
10400 N.W . 33
rd
St
Miam i, Florida 33172
U.S.A.
phone: +1-305-593-6033
fax: +1-305-594-3973
e-mail: sales@raltron.com
internet: http://www.raltron.com
Ultra Performance
MEMS Oscillator
Page 3 of 6
CMC253-SERIES
Table 3. Rise/Fall Time vs. CLoad ( CL ), Vs=2.8V
Table 4. Rise/Fall Time vs. CLoad ( CL ), Vs=3.3V
CL
Drive
Strength
D0
D1
D2
D3
D4
D5
D6
D7
D8,
default
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
5pF
@10%
to 90%
0.29
0.30
0.30
0.31
0.32
0.33
0.35
0.37
0.41
0.62
0.87
0.90
0.94
1.00
1.19
1.59
2.00
2.68
4.06
7.93
15pF
(ns)
typ.
0.54
0.56
0.57
0.60
0.63
0.67
0.78
0.96
1.08
1.19
1.29
1.38
1.51
1.79
2.14
2.57
3.25
4.40
6.66
12.69
30pF
45pF
60pF
CL
Drive
Strength
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10,
default
D11
D12
D13
D14
D15
D16
D17
D18
D19
5pF
@10%
to 90%
0.29
0.30
0.30
0.30
0.32
0.32
0.33
0.34
0.36
0.38
0.48
0.86
0.90
0.94
1.01
1.43
1.65
2.31
3.61
7.18
15pF
(ns)
typ.
0.52
0.54
0.55
0.56
0.58
0.60
0.63
0.70
0.87
1.04
1.15
1.25
1.36
1.51
1.91
2.26
2.92
3.95
6.02
11.59
30pF
45pF
60pF
1.13
1.22
1.31
1.39
1.46
1.54
1.63
1.72
1.84
1.99
2.21
2.48
2.78
3.20
3.76
4.54
5.66
7.53
11.04
17.94
1.55
1.63
1.72
1.80
1.89
2.00
2.15
2.33
2.52
2.76
3.03
3.40
3.84
4.43
5.21
6.27
7.84
10.29
15.31
30.10
2.13
2.22
2.30
2.43
2.57
2.75
2.92
3.15
3.36
3.68
4.05
4.50
5.06
5.77
6.72
8.07
10.11
13.37
19.80
38.89
0.95
1.02
1.12
1.22
1.31
1.40
1.48
1.56
1.66
1.77
1.95
2.21
2.50
2.86
3.38
4.09
5.12
6.88
10.19
17.24
1.41
1.47
1.54
1.62
1.69
1.79
1.89
2.04
2.23
2.47
2.72
3.03
3.46
3.97
4.69
5.66
7.10
9.42
13.98
27.57
1.90
1.97
2.07
2.17
2.28
2.43
2.61
2.80
3.03
3.31
3.65
4.07
4.58
5.25
6.14
7.34
9.17
12.24
18.10
35.57
RALTRON ELECTRONICS
10400 N.W . 33
rd
St
Miam i, Florida 33172
U.S.A.
phone: +1-305-593-6033
fax: +1-305-594-3973
e-mail: sales@raltron.com
internet: http://www.raltron.com
Ultra Performance
MEMS Oscillator
Page 4 of 6
CMC253-SERIES
MECHANICAL DIMENSIONS AND PIN FUNCTIONING
RECONMENDED LAND PATTERN
BOTTOM VIEW
PIN
1
SYMBOL
E/D
FUNCTION
H or Open* :Enable output frequency
L :Disable output frequency , high impedance
STBY
H or Open* : Enable output frequency
L : Output is low ( weak pull down) Device goes to sleep
mode. Supply current ( Is ) reduces to Istby
Electrical Ground
Output Signal
Supply Voltage
E/D/STBY
2
3
4
GND
OUTPUT
Vs
Note: *A pull-up resistor of <10kΩ between ED/STBY pin and Vs is recommended in high noise environment.
RALTRON ELECTRONICS
10400 N.W . 33
rd
St
Miam i, Florida 33172
U.S.A.
phone: +1-305-593-6033
fax: +1-305-594-3973
e-mail: sales@raltron.com
internet: http://www.raltron.com
Ultra Performance
MEMS Oscillator
Page 5 of 6
CMC253-SERIES
ENVIRONMENTAL
REFLOW PROFILE
Soldering
Moisture Sensitivity Level
Temperature Cycle
Vibration
Mechanical Shock
Storage Temperature
MIL-STD-883F, Method 2003
MSL 1 at 260°C
JESD22, Method A104
MIL-STD-883F, Method 2007
MIL-STD-883F, Method 2002
-65° ……. +150°C
REFLOW PROFILE
t
P
T
P
Ramp-up
Critical Zone
T
L
to T
P
T
L
T
SMAX
Temp.
[°C]
T
SMIN
t
S
Preheat
t
L
Ramp-down
t[25°C] to Peak
Time [sec]
Temperature Min Preheat
Temperature Max Preheat
Time (T
SMIN
to T
SMAX
)
Temperature
Peak Temperature
Ramp-up rate
Ramp-down rate
Time within 5°C of Peak Temperature
Time t[25°C] to Peak Temperature
Time
Recommended Solder Reflow Profile
T
SMIN
T
SMAX
t
S
T
L
T
P
R
UP
R
DOWN
t
P
t[25°C] to Peak
t
L
150°C
200°C
60-180 sec.
217°C
260°C
3°C/sec max.
6°C/sec max.
10 sec
480 sec.
60-150 sec.
RALTRON ELECTRONICS
10400 N.W . 33
rd
St
Miam i, Florida 33172
U.S.A.
phone: +1-305-593-6033
fax: +1-305-594-3973
e-mail: sales@raltron.com
internet: http://www.raltron.com
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