VMEM5Q series
Military Clock Oscillator
Features
•
Silicon Resonator
•
Excellent G Sensitivity Performance
•
High Shock Survivability
•
+2.7V to +3.6V Operation
•
CMOS Output
•
Output Frequencies to 130 MHz
•
Enable/Disable for Board Test and Debug
•
-20/70C or –40/85C Operating Temperature
The VMEM5Q Clock Oscillator
•
Industry Standard 5 x 3.2 SMD Footprint
•
Product is Compliant to RoHS Directive
and Fully Compatible with Lead Free
Assembly
Applications
•
Smart Munitions
•
Projectile Electronics
•
Missiles
•
High Shock & Vibration Applications
Description
Vectron’s VMEM5Q high shock resistant Clock
Oscillator is silicon MEMS based stabilized
square wave generator with a CMOS output,
operating off a 3.3V supply.
The VMEM5Q uses an internal compensation
scheme to improve temperature stability which
produces temperature performance equivalent to
quartz based products.
Vectron International 267 Lowell Road, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
VMEM5Q Data Sheet
Performance Characteristics
Table 1. Electrical Performance
Parameter
Frequency
Stability (ordering
option)
Operating Temperature (ordering option)
Operating Supply Voltage
1
Supply Current, Output Enabled
1 to 40 MHz
40.01 to 80 MHz
80.01 to 125 MHz
Supply Current, Output Disabled
Output Logic Levels
Output Logic High
2
Output Logic Low
2
Output Load
Output Rise/Fall Time
2
Duty Cycle
3
Period Jitter, RMS, 125MHz output
Start-up time
Enable/Disable
4
Output Enabled
Output Disabled
Symbol
f
O
T
OP
V
DD
I
DD
Min
1.000
Typical
Maximum
130.000
Units
MHz
ppm
°C
V
mA
mA
mA
uA
V
V
ns
%
ps
ms
V
2.7
±50, ±100
-20/70 or -40/85
3.3
3.6
9
10
16
1
I
DD
V
OH
V
OL
t
R
t
F
SYM
0.9*V
DD
0.1*V
DD
≥10Kohm
II
≤15pf
5
5
45/55
7
10
0.2*V
DD
0.8*V
DD
1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended.
2. Figure 1 defines these parameters. Figure 2 illustrates the operating conditions under which these parameters are tested and
specified.
3. Duty Cycle is measured defined as On Time/Period.
4. Output will be indeterminate if Enable/Disable is left open.
t
R
t
F
I
DD
4
V
DD
V
OH
50%
V
OL
On Time
Period
+
-
.
1μF
.01μF
I
C
V
C
1
+
-
2
3
15pF
Figure 1. Output Waveform
Figure 2. Typical Output Test Conditions (25±5°C)
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
VMEM5Q Data sheet
Table 2. Absolute Maximum Ratings
Parameter
Power Supply
CMOS Input Voltage
CMOS Output Voltage
Junction Temperature
Storage Temperature
Soldering Temperature / Duration
Symbol
V
CC
Ratings
-0.3 to +4.0
-0.3 to (V
DD
+0.3)
-0.3 to (V
DD
+0.3)
150
-55 to 125
260 / 10
Unit
V
V
V
°C
°C
°C
/ sec
T
STR
T
PEAK
/ t
P
Enable/Disable Functional Description
Under normal operation the E/D is set to a logic high state or logic low state. When E/D is set to a logic
low, the oscillator stops and the output is in a high impedance state. This helps reduce power
consumption as well as facilitating board testing and troubleshooting. When E/D is set to a logic high
state, the oscillator produces an output. Leaving the Enable/Disable pin open results in an indeterminate
output state.
Table 3. Outline Diagrams, Pad Layout and Pin Out
Pin #
Symbol
Function
1
E/D
Enable/Disable
2
GND
Electrical and Case Ground
3
f
O
Output Frequency
4
V
DD
Supply Voltage
Contact Pads are gold over nickel
Devices will be marked with a date code and assembly ID information
Figure 3, Package drawing
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
VMEM5Q Data sheet
Reliability
The VMEM5Q qualification tests were performed per MIL-PRF-55310 & the following environmental tests
Table 4. Environnemental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Thermal Shock
Ambient Pressure Operating
Gross and Fine Leak
Resistance to Solvents
Salt Atmosphere
Moisture Resistance
Conditions
Method 213, Cond F except 30,000 g, 0.1 ms
Method 2007, Condition C, 100g
Method 107, Condition B
Method 105, Condition E
Method 1014, Condition A2 & C
Method 215
Method 1009, Condition A
Method 106, MSL1
MIL-STD-202
MIL-STD-883
MIL-STD-202
MIL-STD-202
MIL-STD-883
MIL-STD-202
MIL-STD-883
MIL-STD-202
Handling Precautions
Although ESD protection circuitry has been designed into the the VMEM5Q, proper precautions should
be taken when handling and mounting. VI employs a Human Body Model and a Charged-Device Model
(CDM) for ESD susceptibility testing and design protection evaluation. ESD thresholds are dependent on
the circuit parameters used to define the model.
Table 5. ESD Ratings
Model
Human Body Model
Charged Device Model
Machine Model
Minimum
2000V
500V
200V
Suggested IR Profile
Devices are built using lead free epoxy and can also be subjected to standard lead free IR reflow
conditions. Figure 4 shows max temperatures and lower temperatures can also be used e.g. peak
temperature of 220C.
Figure 4
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
VMEM5Q Data sheet
Table 6. Standard Frequencies (MHz)
2.000
9.216
17.000
29.4912
48.000
75.000
116.640
3.686
9.600
20.000
30.000
50.000
80.000
125.000
4.000
10.000
21.000
32.000
55.000
83.333
127.872
4.032
12.000
21.500
33.000
56.448
84.000
4.9152
12.500
22.000
33.333
58.320
95.000
5.000
12.729
23.000
36.000
60.000
100.000
6.000
14.31818
24.000
37.500
64.000
110.000
7.3728
14.746
25.000
40.000
66.000
112.500
7.680
16.000
26.000
42.500
66.666
114.000
8.000
16.128
27.000
45.000
72.000
115.200
Other frequencies available upon request. Standard frequencies does not imply a stock position.
Ordering Information
VMEM5Q -
Product Family
MEM’s Oscillator
Plastic 5x3.2
B
3
B-
25M000
Output Frequency
In MHZ
Stability Options
Voltage Options
B: +3.3 Vdc, 15pF
Electrical Options
3: Tri-state, 45/55% Duty
A: ±100ppm, -20 to 70°C
C: ±100ppm, -40 to 85°C
B: ±50ppm, -20 to 70°C
D: ±50ppm, -40 to 85°C
1000 pieces per reel, Standard
For Additional Information, Please Contact:
USA:
Vectron International, 267 Lowell Rd, Hudson, NH 03051 . . . .
Tel: 1-88-VECTRON-1
For Additional Information,
+49 (0) 3328-4784-30
EUROPE:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tel: +49 (0) 3328-4784-17
Fax:
ASIA:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tel: +86-21-28909740
Fax: +86-21-28909240
Fax: 1-888-FAX-VECTRON
www.vectron.com
Rev date: June 16, 2008
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
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