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CRYSTAL CLOCK OSCILLATORS
Data Sheet 0628B Rev. B
LVPECL UHF CLOCK (XO)
SD-A29KXXX Series (3.3 Volt) SD-B29KXXX Series (2.5 Volt)
Description
The SD-X29KXXX Series of quartz crystal oscillators provides ultra high frequency with LVPECL complementary outputs. The outputs can be Tri-stated for test automation or combining multiple clocks. The device is based on low noise analog harmonic multiplication for higher frequencies, and packaged in a miniature, low profile leadless ceramic SMD package with 6 gold plated pads.
Applications and Features
* Wide frequency range - 38.0MHz to 640.000MHz * Fiber Channel; 10 GbE; Infiniband; Network Processors; SOHO Routing * High Reliability - NEL HALT/HASS qualified for crystal oscillator start-up conditions * Low Phase Noise, Low Jitter * High shock resistance, to 1000g * Ultra High Frequency * Tight frequency stability - 20 ppm overall available * Grounded lid and internal by-pass capacitor reduce EMI * RoHS Compliant, Lead Free Construction
Creating a Part Number SD - X 29K X X X - FREQ Package Code Overall Frequency Stability, ppm SD 6 pad 5x7mm SMD E 20 F 25 Input Voltage G 50 A 3.3V5% H 100 B 2.5V5% 9 Customer specific
Enable Option H Enable High L Enable Low
Temperature Range, C A 0 to 50 B 0 to 70 C -20 to 70 D -40 to 85 9 Customer specific
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com
CRYSTAL CLOCK OSCILLATORS
SD-X29KXXX Series Continued LVPECL UHF CLOCK (XO)
Data Sheet 0628B Rev. B
Absolute Maximum Ratings
Parameter Operating Temperature Range Storage Temperature Range Supply Voltage Enable/Disable Voltage Parameter Nominal Frequency Supply Voltage Supply current Output Logic Type Load Output Levels Voh Vol Symb Fo Vcc Icc Symbol To Tst Vcc Ven/dis Conditions, Note Code A Code B Value -40 to +85 -50 to +90 -0.5 to 4.5 0 to Vcc MIN 38 3.135 2.375 TYP 3.3 2.5 80 LVPEC L 50 MAX 640 3.465 2.625 100 Unit C C V V Unit MHz V mA Ohm V
Electrical Parameters
Output to Vcc-2V, or Thevenin Equivalent overall
Duty Cycle (Symmetry) Rise/Fall Time Jitter Integrated Wavecrest characterized Tr/Tf J
Sub-harmonics Phase Noise (f)
Frequency Stability
F/F
Enable High Option Pin 2 Enabled Pin 2 Disabled Enable Low Option Pin 2 Disabled Pin 2 Enabled
At 50% of output voltage swing 20 to 80, 80 to 20 % Integrated from Phase Noise, 12 KHz to 20 MHz, RMS Random <320 M period, >320 M Accumul., <320 M pk-to-pk >320 M Deterministic <320 M >320 M <320 M >320 M 212.5 MHz @ 10 Hz @100 Hz @1 KHz @10KHz @100KHz @>1MHz Overall, including initial calibration, temperature, aging 10 years, shock and vibration CMOS logic 1 or N/C CMOS logic 0 CMOS logic 1 or N/C CMOS logic 0
Vcc1.025 Vcc1.620 45/55
50/50 0.5 0.3
55/45 0.7
% ns ps ps ps ps dBc
dBc/Hz
2.5 2.5 30 43 6 18 -50 -35 -65 -95 -125 -140 -145 -148 See "Creating a Part Number" Not all combinations available, consult factory 0.7 Vcc 0 0.7 Vcc 0 Vcc 0.3 Vcc Vcc 0.3 Vcc
ppm
V V
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com
CRYSTAL CLOCK OSCILLATORS
Rev. B SD-X29KXXX Series Continued LVPECL UHF CLOCK (XO)
Electrical Connection Pin Connection 1 Enable/Disable 2 N.C. 3 VEE /Ground 4 Output 5 /Output 6 VCC
Environmental and Mechanical Characteristics
Operating temp. range Mechanical Shock Thermal Shock Vibration Hermetic Seal Soldering conditions see part # table Per MIL-STD-202, Method 213, Cond. E Per MIL-STD-883, Method 1011, Cond. A Per MIL-STD-883, Method 2007, Cond. A Leak rate less than 1x10-8 atm.cc/s of helium See MAX reflow profile below
Maximum Reflow Profile
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881 Email: nelsales@nelfc.com www.nelfc.com

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