VF261 XO Low Jitter 5x7mm SMD, PECL / LVPECL Features ¾ ¾ ¾ 25MHz to 320MHz Frequency Range Tight duty cycle <1ps jitter over 12KHz ~ 20MHz RoHS Status Applications ¾ ¾ ¾ Optical Networking, SONET / SDH 10 Gigabit Ethernet Broadband Access *Not recommended for new designs – see VFXO401* Electrical Specifications Parameter Symbol Frequency Range F Frequency Stability Operating Temperature ∆F/F Condition Min Typ 15 Over all conditions of :Operating Temperature; Supply Voltage; 10 Years Aging; shock & vibration 0° -40° T Max Unit 300 MHz ± 20 ± 25 ± 50 ± 100 ppm +70° +85° °C PECL Output Supply Voltage Vcc PECL LVPECL Input Current Icc 50 Ohm Load 4.75 3.15 5.00 3.30 Note Order Code S Order Code A Order Code B standard LVPECL 5.25 3.45 V 60 mA Standard Order Code L 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • Datasheet RevC0608 1 VF261 XO Low Jitter 5x7mm SMD, PECL / LVPECL Electrical Specifications Parameter Symbol Condition Min Typ Max Unit Note 50 Ohm to Vcc-2V or Thevenin Equivalent Bias Required Load 47.5 45 Duty Cycle 50 50 52.5 55 % 1.5 ns Rise / Fall Time Tr/Tf 20% to 80% Logic “1” Level Voh Vcc = 5.0V Vcc = 3.3V 4.04 2.59 4.19 2.74 V Logic “0” Level Vol Vcc = 5.0V Vcc = 3.3V 3.15 1.45 3.25 1.55 V 10 ms 0.7 ps 2 Start up time Jitter 12KHz~20MHz 1σ Order Code HH Standard How to Order VF261 — Code S A B Stability Specification 20 ppm 25 ppm 50 ppm 100ppm std. — Code HH Duty Cycle Specification ±2.5% ±5% std. — FREQUENCY, MHz Input Voltage Code Output L 3.3V 5.0V Temp. Range Code Specification Code Output S 20 ppm 0~70°C std. A 25 ppm 1 -40~+85°C B 50 ppm 100ppm 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • Datasheet RevC0608 2 VF261 XO Low Jitter 5x7mm SMD, PECL / LVPECL Absolute Maximum Ratings Parameter Supply Break Down Voltage Storage Temperature Junction Temperature Symbol Condition Min Typ Max Unit Vcc -0.5 4.6 V Ts -55 +125° °C +125° °C Tj Note Environmental and Mechanical Parameter Mechanical Shock Thermal Shock Specification Per MIL-STD-202, Method 213, Condition E Per MIL-STD-883, Method 1011, Condition A Vibration Per MIL-STD-883, Method 2007, Condition A Soldering Conditions 260°C for 10s max Leak rate less than 5x10-8 atm.cc/s of helium Hermetic Seal Pin # 1 2 3 4 5 6 Connection N/C N/C Case GND Output Output Vcc 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • Datasheet RevC0608 3