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SD-A2981-FREQ Fiches technique(PDF) 3 Page - Nel Frequency Controls,inc |
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SD-A2981-FREQ Fiches technique(HTML) 3 Page - Nel Frequency Controls,inc |
3 / 13 page For the most up to date spec- ifications on each NEL prod- uct, log on to our website— www.nelfc.com Differential Positive ECL (DPECL 3.3V) SD-A2980 Series Frequency Range: 80.0-540.0 MHz Operating Conditions and Output Characteristics Electrical Characteristics Parameter Symbol Conditions Min Typical Max Frequency — — 80.0 MHz — 540.0 MHz Duty Cycle — @VCC -1.29 V 45/55% — 55/45% Logic 0(2) VOL — 1.35 V — 1.70 V Logic 1(2) VOH — 2.28 V — 2.56 V Rise & Fall Time tr, tf 20-80% VO, with 50 ohm load to VCC -2V —— 1 nsec Jitter, RMS (3) —— —— 3 psec Enable Voltage(5) — with VEE = 0V 2.0 V — — Disable Voltage — with VEE = 0V —— 0.8 V Frequency Stability(1) dF/F Overall conditions including: -100 ppm — +100 ppm voltage, calibration, temp., 10 yr aging, shock, vibration General Characteristics Parameter Symbol Conditions Min Typical Max Supply Voltage VCC — 3.15 V 3.3 V 3.45 V Supply Current ICC 50 ohm termination to 2.00 V below VCC 0.0 mA — 80 mA Output Current IO Low level Output Current 0.0 mA — ±50.0 mA Operating Temperature TA —0ºC— 70ºC Storage Temperature TS — -55ºC— 125ºC Power Dissipation PD —— — 276 mW Lead Temperature TL Soldering, 10 sec. — — 300ºC Load 50 ohm to VCC -2V or Thevenin Equivalent, Bias Required Start-up Time tS —— 2 ms 10 ms Environmental and Mechanical Characteristics Mechanical Shock Per MIL-STD-202, Method 213, Condition E Thermal Shock Per MIL-STD-833, Method 1011, Condition A Vibration 0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55 Hz to 2000 Hz Soldering Condition 300ºC for 10 seconds Hermetic Seal Leak rate less than 1 x 10 -8 atm.cc/sec of helium Footnotes: 1) Standard frequency stability (±20, ±25, ±50 ppm & others available). 2) VOL, VOH, referenced to ground (VEE) with VCC = 3.3 V. 3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization. RMS jitter bandwidth of 12 kHz to 20 MHz. 5) Open to enable pin also enables the output. Test Circuit 6 5 4 3 Test Circuit uses a split supply of +2V and -1.3V for ease of testing. |
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