High Frequency Ultra Performance
MEMS Oscillator
Page 1 of 5
CMC304-SERIES
■ Ultra low phase jitter: 0.5ps ( 12kHz to 20MHz )
■ LVCMOS/ LVTTL compatible output
■ SMD package 3.2 x 2.5 mm
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
CONDITION
Min.
VALUE
Typ.
Max.
220
1.8
2.5
2.8
3.3
30
1.89
2.75
3.08
3.63
33
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
=100MHz, no load
80
1.71
2.25
2.52
2.97
MHz
V
V
V
V
mA
Supply Voltage
Vs
Supply Current
Is
Vs = 2.5V,2.8V and 3.3V
f
0
=100MHz,
no load
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
-20
-40
-10
-20
-25
-50
-1.5
-5.0
34
36
+70
+85
+10
+20
+25
+50
1.5
5.0
115
30
31
10
70
ppm
ppm
mA
C
°C
ppm
ppm
ppm
ppm
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
=220MHz, 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 maximum value
Measured from the time STBY pin
crosses 50% threshold
6
ms
mA
mA
ms
ms
ns
ps
ps
ps
Vs
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
10
10
C
L
= 15pF, 10% - 90% Vs
1.5
0.6
1.5
2.0
70%
2.0
1.0
2.0
3.0
f
0
=156.25MHz,BW 12KHz to 20MHz
f
0
=156.25MHz,Vs=2.5V,2.8V or 3.3V
f
0
=156.25MHz,Vs=1.8V
Pin 1, E/D or STBY
Pin 1, E/D or STBY
30%
100
250
Vs
kΩ
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
High Frequency Ultra Performance
MEMS Oscillator
Page 2 of 5
CMC304-SERIES
OUTPUT CHARACTERISTICS
VALUE
PARAMETER
SYMBOL
CONDITION
I
oh
= -3 mA ( Vs=1.8V )
Min
0.9 Vs
Typ.
Max
UNIT
V
LVCMOS
V
OH
Output Levels
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 )
V
OL
Duty Cycle
Output Load
0.1Vs
45
40
15
55
60
V
%
%
pF
DC
C
L
f
0
≤165MHz, all Vs
f
0
≥165MHz, all Vs
Ta=25 °C
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
High Frequency Ultra Performance
MEMS Oscillator
Page 3 of 5
CMC304-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
High Frequency Ultra Performance
MEMS Oscillator
Page 4 of 5
CMC304-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
High Frequency Ultra Performance
MEMS Oscillator
Page 5 of 5
CMC304-SERIES
ORDERING INFORMATION
SERIES
SUPPLY VOLTAGE
(V)
Frequency
Stability
TEMP
RANGE
(°C )
Output Load
Enable/
Disable
Function
-
OUTPUT
FREQUENCY
(MHz)
18: Vs=1.8V
CMC304
25: Vs=2.5V
28: Vs=2.8V
33: Vs=3.3V
A:±10ppm
B:±20ppm
C:±25ppm
D:±50ppm
U: -20~70
V: -40~85
1:15pF
E: E/D
output
S:Standby
-
APPROVALS
Eng. approval, date: SP, 07/11/2016
Created by, date:
Revision: A
SP, 07/11/2016
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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