VM-820
MEM’s Clock Oscillator
VM-820
Description
Vectron’s VM-820 Clock Oscillator is the next generation silicon MEMS based stabilized square wave generator with a CMOS output,
operating off a 1.8, 2.5 or 3.3V supply.
The VM-820 uses an internal compensation scheme to improve temperature stability which produces temperature performance equivalent
to quartz based products.
Features
•
•
•
•
•
•
•
•
•
•
Short Lead Time
Compact QFN Package
Low Power
+1.8V, +2.5V, or +3.3V Operation
CMOS Output
Output Frequencies to 150 MHz
Enable/Disable for Board Test and Debug
-20/70°C or –40/85°C Operating Temperature
Industry Standard 3.2x2.5 SMD Footprint
Product is Compliant to RoHS Directive and Fully Compatible
with Lead Free Assembly
•
•
•
•
•
•
Applications
Portable Media Players
Consumer Electronic Applications
Printers
Camera’s
Low Profile Applications
Computers & Peripherals
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page1
Performance Specifications
Specifications
Table 1. Electrical Performance
Parameter
Frequency
Stability
1
(ordering option)
Operating Temperature (ordering option)
Operating Supply Voltage
2
(ordering option)
Supply Current, Output Enabled
1 to 40MHz
40.01 to 80MHz
80.01 to 125MHz
125.01 to 150MHz
Supply Current, Output Disabled
Output Logic Levels
Output Logic High
3
Output Logic Low
3
Output Load
Output Rise/Fall Time
3
Duty Cycle
4
Period Jitter
5
, RMS, 80MHz Output
Peak-Peak
Start-up Time
Enable/Disable
6
Output Enabled
Output Disabled
1]
2]
3]
4]
5]
6]
Symbol
f
O
Δ f/f
o
T
OP
V
DD
Min
1.000
Typical
±25, ±50, ±100
-20/70 or -40/85
Maximum
150.000
Units
MHz
ppm
°C
1.65
2.3
3.0
1.8
2.5
3.3
3
4
5
6
1.95
2.7
3.6
6
8
10
12
1
V
V
V
mA
mA
mA
mA
uA
V
V
ns
ns
%
ps
ps
I
DD
I
DD
V
OH
V
OL
t
R
t
F
SYM
9
75
T
SU
V
IH
V
IL
0.75*V
DD
3
0.8*V
DD
0.2*V
DD
≥10Kohm II ≤15pf
1.3
1.3
3
3
45/55
10
ms
V
V
0.25*V
DD
Stability includes initial accuracy, temperature and aging.
A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended.
Figure 2 defines these parameters. Figure 1 illustrates the operating conditions under which these parameters are tested and specified.
Duty Cycle is measured defined as On Time/Period.
Measured using a Wavecrest SIA3300C, 90K samples
Output will be active if Enable/Disable is left open.
Description
I
DD
4
+
V
DD
-
.1μF
1
3
2
15pF
V
OH
50%
V
OL
On Time
t
R
t
F
Period
Fig 1: Test Circuit
Fig 2: Output Waveform
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page2
Table 2. Absolute Maximum Ratings
Parameter
Power Supply
CMOS Input Voltage
Junction Temperature
Storage Temperature
Soldering Temperature / Duration
Symbol
V
DD
E/D
T
J
T
STR
T
PEAK
/ t
P
Ratings
-0.3 to +4.0
-0.3 to (V
DD
+0.3)
150
-55 to 125
260 / 40
Unit
V
V
°C
°C
°C / sec
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 active state with an output frequency.
Outline Drawing
Units: mm (inches)
Suggested Pad Layout
Contact Pads are
Gold flash (0.003 um min ) over
Palladium (0.01-0.15um) over
Nickel (0.508-2.032um)
Figure 3
Table 3. Pin Out
Pin
1
2
3
4
Symbol
E/D
GND
f
O
V
DD
Function
Enable/Disable
Electrical Ground
Output Frequency
Supply Voltage
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page3
Reliability
Table 4. Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Gross and Fine Leak
Resistance to Solvents
Moisture Sensitivity Level
Conditions
MIL-STD-202, Method 2002
MIL-STD-883, Method 2007
MIL-STD-883, Method 1010
MIL-STD-883, Method 1014
MIL-STD-202, Method 215
MSL1
Handling Precautions
Although ESD protection circuitry has been designed into the VM-820, 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
200 V
Suggested IR Profile
Devices are built using lead free epoxy and can also be subjected to standard lead free IR reflow conditions. Figure 6 shows max
temperatures and lower temperatures can also be used e.g. peak temperature of 220C.
Table 6. Reflow Profile
Parameter
PreHeat Time
Ts-min
Ts-max
Ramp Up
Time Above 217 °C
Peak Temperature
Time To Peak Temperature
Time at Peak Temperature
Ramp Down
Symbol
t
S
Value
60 sec Min, 260 sec Max
150°C
200°C
3 °C/sec Max
60 sec Min, 150 sec Max
255-260°C
480 sec Max
20 sec Max
6 °C/sec Max
R
UP
t
L
t
P
T
25C to Peak
t
P
R
DN
Figure 4
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page4
Ordering Information
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.
VM-820-EAE-KANN- xxMxxxxxxx
Product Family
MEM’s Oscillator
Package Size
3.2x2.5x0.9mm
Supply Voltage
E: +3.3Vdc
H: +2.5Vdc
J: +1.8Vdc
Output
A: LVCMOS
Operating Temperature
J: -20/70°C
E: -40/85°C
Frequency (See Above)
In MHz
Other
N: Standard
Other
N: Standard
Enable/Disable Options
A: Enable High
Stability Options
S: ±100ppm
K: ±50ppm
F: ±25ppm
Example: VM-820-EAE-KANN-125M000000 = 3.2x2.5, +3.3V, LVCMOS output, ±50ppm over -40/85°C with a 125.000MHz output
For Additional Information, Please Contact
USA:
Vectron International
267 Lowell Road
Hudson, NH 03051
Tel: 1.888.328.7661
Fax: 1.888.329.8328
Europe:
Vectron International
Landstrasse, D-74924
Neckarbischofsheim, Germany
Tel: +49 (0) 3328.4784.17
Fax: +49 (0) 3328.4784.30
Asia:
Vectron International
1F-2F, No 8 Workshop, No 308 Fenju Road
WaiGaoQiao Free Trade Zone
Pudong, Shanghai, China 200131
Tel: 86.21.5048.0777
Fax: 86.21.5048.1881
Disclaimer
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application.
No rights under any patent accompany the sale of any such product(s) or information.
Rev: 9/22/2009
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page5
