Data Sheet

VFH2321-VFH2324
VFH2421-VFH2424
XO Hi-REL, 1.8V
5x7mm SMD, HCMOS
Features

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
Leadless chip carrier package is hermetically
sealed for superior aging and field performance
Crystal angle controlled to ±0.5 minute for
excellent temperature stability
168 hour Class B burn-in and extensive
environmental testing for best performance in
rugged field environments
Guarantee start-up with a ramping DC supply
Start-up time <5ms, typical
Tristate option available
Calculated MTBF is 3.8x106 hours at 125°C
RoHS Status
Description
These high reliability oscillators provide HCMOS clock waveforms for applications subjected to the most stringent
environmental conditions. They are mechanically robust and weigh less than 0.2 grams. This 5x7 mm SMD package
has a hermetic seal, thus ensuring the integrity of each oscillator. Each oscillator is burned-in at 125°C for 168
hours, temperature cycled and centrifuged then fully tested in accordance with Table 1. Reliability tests are
performed per Table 2. The calculated MTBF is 3.8x106 at 125°C.
Electrical Specifications
Parameter
Symbol
Frequency
Range
F
Frequency
Stability
Operating
Temperature
Range
Input Voltage
Input Current
Condition
Min
Vs. Operating Temperature
∆F/F
Max
Unit
0.85
165
MHz
25
75
Aging 1st Year
After 1st Year
3
1
T
-55
Vcc
Icc
Typ
1.7
850 KHz to 70 MHz, with 15pF load
70.1 to 165.0 MHz with 15pF load
1.8
7.0
15.0
Jitter RMS
Measured at 50% VDD
850 KHz to 70 MHz
70.1 to 165.0 MHz
Waveform
Symmetry
Rise / Fall
Time
Output Level
Input
Requirements
for Pin 1
48/52
45/55
Tr/Tf
“Zero” Level
“One” Level
90% VDD
ppm
+125
C
1.9
10.0
18.0
10
V
Note
See
Chart
See
Chart
mA
ps
45/55
40/60
%
5
ns
10% VDD
V
“1”: On-Pin 1 may float or 90% VDD min.
“0”: Tristate-Pin 1 requires 10% VDD
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevB1010
1
VFH2321-VFH2324
VFH2421-VFH2424
XO Hi-REL, 1.8V
5x7mm SMD, HCMOS
Environmental and Mechanical Conditions
Parameter
Storage
Temperature
Shock
Vibration
Humidity
Leak
Case
Pads
Resistance
to Solvents
Marking
Condition
-55°C to +150°C
1000 Gs, 0.35 ms, ½ sine wave, 3 shocks in each plane
10-2000 Hz of 0.06” d.a. or 20Gs, whichever is less
Resistant to 85° R.H. at 85°C
Per MIL-STD-883, Method 1014, Cond. A1 and Cond. C
Hermetically sealed ceramic LCC
15 microinch of gold over nickel
Per MIL-STD-202, Method 215
Epoxy ink or laser engraved
FIXED OUTPUT
TRISTATE
Model
Model
VFH2321
VFH2322
VFH2323
VFH2324
VFH2421
VFH2422
VFH2423
VFH2424
Operating
Temperature
-55C to +85C
-55C to +85C
-55C to +125C
-55C to +125C
Frequency
Stability
±25 ppm
±50 ppm
±75 ppm
±50 ppm
Table 1
Thermal Characteristics
Each unit undergoes the following:
Thermal Resistance
From Junction to Case, RØjc
1. Stabilization Bake
2. Temperature Cycling
3. Constant Acceleration
4. Burn-in
MIL-STD-883 Method 1008, Cond,.B
MIL-STD-883 Method 1010, Cond, B
MIL-STD-883 Method 2001, Cond, A
MIL-STD-883 Method 1015, Cond B
(125°C for 168 hours with bias)
5. Fine Leak
MIL-STD-883 Method 1014, Cond. A1
6. Gross Leak
MIL-STD-883 Method 1014, Cond C
7. Electrical Test at 25°C and temperature extremes, as follows:
A. Frequency
F. Duty Cycle
B. Current
G. Frequency at max VDD
C. Rise Time
H. Frequency at min VDD
D. Fall Time
I. “Zero” logic level
E. Duty Cycle
J. Tristate
16 °C/Watt
Surface Mount Application
These packages are designed for reflow soldering
in accordance with recommended profiles. For
hand-soldering, the temperature of the iron should
not exceed 400°C for three seconds.
Test Data on each unit is available for additional cost
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevB1010
2
VFH2321-VFH2324
VFH2421-VFH2424
XO Hi-REL, 1.8V
5x7mm SMD, HCMOS
How to Order
VFH
2321
2321
is model type
–
Marking Specification
40M
Model Number
VFHXY
40.000
XXYY
40M Frequency
in MHz
Frequency
in MHz
Date Code
Package
Pad
1
2
3
4
VFH2321-VFH2324
VFH2421-VFH2424
N/C
Tristate
Ground
Output
VDD
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevB1010
3
VFH2321-VFH2324
VFH2421-VFH2424
XO Hi-REL, 1.8V
5x7mm SMD, HCMOS
Recommended Reflow Soldering Profile
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevB1010
4
VFH2321-VFH2324
VFH2421-VFH2424
XO Hi-REL, 1.8V
5x7mm SMD, HCMOS
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevB1010
5
VFH2321-VFH2324
VFH2421-VFH2424
XO Hi-REL, 1.8V
5x7mm SMD, HCMOS
TABLE 2
Reliability Test Procedures and Conditions for Quartz Crystal Oscillators
B.
1. Group A
Electrical Characteristics at -55°C, and 125°C
(85°C for VFH2321, VFH2421, VFH2322, VFH2422)
Frequency @ 1.7, 1.8, and 1.9 volts
Symmetry (Duty Cycle)
Input current
Zero/One levels
Rise/Fall times
Physical Dimensions
Length/width
Height
Seal (Visual)
Package finish (Corrosion, discoloration, etc.)
Marking placement/legibility
2. Group B- Life Test
1000 hrs at or above 125°C, 1.8V VDC, with proper load
MIL-STD-883
MIL-STD-883
End point
Measurement
Frequency
Output waveform
Standard
MIL-STD-883
Condition
Method 1011
COND. B
Description
Thermal Shock
Liq. To liq.
-55°C to 125°C,
15 cycles
MIL-STD-202
Method 105
COND. B
Altitude, 3.44
inch Hg. 12 hrs
Frequency
Output waveform
MIL-STD-883
Method 1004
Moisture resist.
with 1.8V applied
25°C to 65°C,
90 to 100% RH,
10 cycles
Frequency
Output waveform
MIL-STD-202
Method 210
COND.A
Resistance to
Frequency
Solder Heat
Output waveform
Immersion @350ºC
3.5 sec
3. Group C- All units have passed Group A testing
A. Subgroup 1-8 pcs.
Standard
MIL-STD-883
Subgroup 2-4 pcs (One-half of Subgroup 1)
End Point
Measurement
Frequency
Output waveform
Standard
Vibration, var.
freq. 20 g’s,
0.06” disp., 2020, 000-20 Hz
Frequency
Output waveform
Condition
Storage Temp.
No. Oper
Description
24 hrs. @ -55°C
24 hrs. @ 125°C
End point
Measurement
Frequency
Output waveform
MIL-STD-883
Method 1009
COND. A
Salt Atmosphere
24 hrs. @ 35°C
0.5-3.0% Solution
Frequency
Output waveform
Visual
Solderability
Visual 95%
Coverage
MIL-STD-883
Method 1014
COND. A1
Method 1014
COND. C1
Fine Leak
Qs <5 X10
Gross Leak
Visual in 125°C
Detector fluid
Condition
Method 2002
COND.B
Description
Mechanical Shock
1500 g’s, 0.5ms
5 drops, 6 axis
Method 2007
COND. A.
Method 2003
C.
MIL-STD-883
Subgroups 3-4 pcs. (One half of Subgroup 1)
-8
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevB1010
6
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