TCXO 74 SERIES

The TCXO74 series oscillators are hermetically sealed printed circuit board mount packages that offer a variety of performance features not usually found in DIP or surface mount TCXOs. Fundamental and third overtone quartz resonators may be used to achieve low aging rates and custom tuning features. Mechanical and /or electrical frequency adjustment is available, and reference voltages may be added as a customer interface for D/A or potentiometer type electrical frequency adjustment.

Specification Table
Parameter	TCXO 74-1	TCXO 74-2
Frequency	10.000000 MHz
R.F. Output	Rectangular HCMOS 20 pF Load Duty Cycle 40% to 60% @ 50% of input Voltage
Change in frequency versus ..
Temperature (Ambient) ( 0°C .. +70°C) Referenced to +25 C	< +/- 1 PPM
Time (Aging) Year	< +/- 1 PPM
Input Voltage (+/- 5% change)	< +/- 0.25 PPM
Other Parameters
Phase Noise @ 1 kHz	-135 dBc
Mechanical Frequency Adjustment Range** Resolution	> +/- 4 PPM < +/- 50 PPB
Electrical Frequency Adjustment Adjustment Range Positive Slope (+0.5 to +4.5 VDC)	>+/- 6 PPM < +/- 12 PPM	Not Applicable
Input Power	+5 VDC +/- 5%, < 10 mA
Package	1.50 x 1.50 x 0.50 inches (LxWxH)
Units	1 PPM = 1x10-6 1 PPB = 1x10-9

** The Mechanical Frequency Adjustment Range is sufficient for the life of the oscillator.

Specifications subject to change with frequency.

Available Frequency Range: 1 kHz to 50 MHz Including 3.2, 5.0, 6.144, 8.192, 9.6, 10.0, 10.23, 10.24, 12.288, 12.352, 13.0, 15.36, 20.0, 24.576, 24.704, and 32.768 MHz

AVAILABLE OPTIONS: Low Phase Noise, Different Input Voltage, Pin Patterns, Wide Electrical Frequency Adjustment, Sine Wave Output

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