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| CRYSTAL CLOCK OSCILLATORS Frequency Selectable Differential Sine Wave Data Sheet 0549B Rev. B SY-A6A70 Series Description The SY-A6A70 Series of quartz crystal oscillators provides a Frequency Selectable Differential Sine Wave signal. The oscillator frequency is set by the voltage applied to the frequency select pin. The two selectable frequencies can be any discrete frequency selected within the range listed below. This device is to operate using positive voltage and uses multiple ground pins for improved signal integrity. Features * Wide frequency range - 250MHz to 1.7GHz * User specified tolerance from 20ppm * Will withstand SMD reflow temperatures of 183C for 4 minutes maximum * High shock resistance, to 1000g * Low Jitter Wavecrest jitter characterization available * Low Phase Noise of -135dB Phase Noise characterization available Electrical Connection Pin Connection * High Reliability - NEL HALT/HASS qualified for crystal oscillator start-up conditions * Overtone technology * High Q Crystal actively tuned oscillator circuit * Power supply decoupling internal * Cover connected to ground * No internal PLL avoids cascading PLL problems * High frequencies due to proprietary design 1 2 3 4 5 6 7 8 VCC Ground NC or Ground Q Output /Q Output Ground Frequency Select Enable 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 SY-A6A70 Series Continued Frequency Selectable Differential Sine Wave Operating Conditions and Output Characteristics Electrical Characteristics Parameter Frequency1 Frequency2 Harmonic Spurious Nonharmonic Spurious Output Voltage Jitter, RMS(1) Enable Voltage Disable Voltage Freq1 Select Voltage Freq2 Select Voltage Frequency Stability Phase Noise Symbol Conditions --------------------------------VP-P -------------------------------------------dF/F Overall conditions including: voltage, calibration, temp., 10 yr aging, shock, vibration ----@10kHz ----@100kHz ----@1MHz ----@10MHz Min 250.0MHz 250.0MHz --------0.60V ----0.7VCC ----0.7VCC -----100ppm ----------------- Data Sheet 0549B Rev. B Typical ---------25dBc ----0.85V 0.3 psec ------------------------------------- Max 1.7GHz 1.7GHz -20dBc -60dBc ----0.5 psec ----0.3VCC ----0.3VCC +100ppm -130 dBc/Hz -130 dBc/Hz -135 dBc/Hz -135 dBc/Hz General Characteristics Parameter Supply Voltage Supply Current Output current Operating temperature Storage temperature Lead temperature Load (2) Start-up time Symbol Conditions VCC 3.3V5% 50 ohm termination ICC IO Low level Output Current -----TA ----TS TL Soldering, 10 sec. 50 Ohm termination ----tS Min 3.135V 0.0 mA 0.0 mA -40C -55C --------Typical 3.3V 85mA ----------------2 ms Max 3.465V 100 mA 50.0 mA 85C 125C 300C 10 ms Environmental and Mechanical Characteristics Mechanical Shock Thermal Shock Vibration Soldering Condition Per MIL-STD-202, Method 213, Condition E Per MIL-STD-833, Method 1011, Condition A 0.060" double amplitude 10 Hz to 55 Hz, 35g's 55Hz to 2000 Hz 300C for 10 seconds Footnotes: 1) Jitter performance is frequency dependent. Please contact factory for full Aeroflex characterization. RMS jitter bandwidth of 12kHz to 20MHz. 2) Internally AC coupled output Creating a Part Number SY - A6A7X - FREQ Package Code SY 8 pad 14x17mm SMD Tolerance/Performance 0 100ppm 0-70C 1 50ppm 0-70C 7 25ppm 0-70C 9 Customer Specific A 20ppm 0-70C B 50ppm -40 to +85C C 100ppm -40 to +85C Input Voltage Code Specification A 3.3V B 2.5V 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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