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CRYSTAL CLOCK OSCILLATORS
LVDS UHF CLOCK (XO)
Data Sheet 0629B Rev. -
SD-A2D4XXX Series
Description
The SD-A2D4XXX Series of quartz crystal oscillators provides ultra high frequency with LVDS complementary outputs. The outputs can be Tri-stated for test automation or combining multiple clocks. The device is based on advanced PLL 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 - A 2D4 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 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-A2D4XXX Series Continued LVDS UHF CLOCK (XO)
Data Sheet 0629B Rev. -
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 Symb Fo Vcc Icc At receiving end between the outputs Differential amplitude Amplitude error Offset Voltage Offset Voltage error At outputs crossing, room temperature 20 to 80, 80 to 20 % Integrated from Phase Noise, 12 KHz to 20 MHz , RMS Random 155 MHz period, 622 MHz Accumul., 155 MHz pk-to-pk 622 MHz 155 MHz @ 10 Hz @100 Hz @1 KHz @10KHz @100KHz @1MHz @>10M 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 90 247 1.125 45/55 Symbol To Tst Vcc Ven/dis Conditions, Note Code A Value -40 to +85 -50 to +90 -0.5 to 4.5 0 to Vcc MIN 38 3.135 TYP 3.3 80 LVDS 100 330 1.25 50/50 0.5 0.4 MAX 640 3.465 100 110 454 50 1.375 50 55/45 0.7 Unit C C V V Unit MHz V mA Ohm mV mV V mV % ns ps
Electrical Parameters
Vod Vof
Duty Cycle (Symmetry) Rise/Fall Time Jitter Integrated Tr/Tf J
Wavecrest characterized
Phase Noise
(f)
Frequency Stability
F/F
3.5 6 20 40 -60 -90 -120 -130 -128 -144 -150 See "Creating a Part Number" Not all combinations available, consult factory
ps ps
dBc/Hz
ppm
Enable High Option Pin 2 Enabled Pin 2 Disabled Enable Low Option Pin 2 Disabled Pin 2 Enabled
0.7 Vcc 0 0.7 Vcc 0
Vcc 0.3 Vcc Vcc 0.3 Vcc
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. SD-A2D4XXX Series Continued LVDS 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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