VFH2321-VFH2324 VFH2421-VFH2424 XO Hi-REL, 1.8V 5x7mm SMD, HCMOS Features 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 -55C to +85C -55C to +85C -55C to +125C -55C to +125C 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