CRYSTAL CLOCK OSCILLATORS
LVCMOS
Data Sheet 0007A
Rev. K
SC-A1440 Series
Description
The
SC-A1440 Series
of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible
signals for bus connected systems. Supplying Pin 1 of the SC-A1440 units with a logic 鈥?" or open enables
its Pin 3 output. In the disable mode, Pin 3 presents a high impedance to the load.
Features
鈥?Wide frequency range鈥?0.0MHz to 180.0MHz
鈥?User specified tolerance available
鈥?Will withstand vapor phase temperatures of 253擄C
for 4 minutes maximum
鈥?Space-saving alternative to discrete component
oscillators
鈥?3.3 Volt operation
鈥?High shock resistance, to 1000g
鈥?Low Jitter - Wavecrest jitter characterization
available
Electrical Connection
Pin
1
2
3
4
Connection
Enable/Disable
Ground
Output
V
DD
鈥?High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
鈥?High Q Crystal actively tuned oscillator circuit
鈥?Power supply decoupling internal
鈥?No internal PLL avoids cascading PLL problems
鈥?High frequencies due to proprietary design
鈥?/div>
Metal lid electrically connected to ground to
reduce EMI
鈥?Gold plated pads
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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