LFSPXO011178

## **IQXO-350 Commercial Oscillator** 

## **ISSUE 17; 1 SEPTEMBER 2001** 

## **Delivery Options** 

- I Common frequencies are available from stock, please contact our sales office for current leadtimes 

## **Minimum Order Information Required** 

- I Frequency + Model Number + Operating Temperature (if applicable) + Frequency Stability 

## **Outline in mm** 

## **Output Compatibility** 

- I HCMOS/TTL/LSTTL 

- I Drive Capability: 50pF or 10TTL (<70.0MHz) 30pF (>70.0 to 160.0MHz) 

- (1.0 to < 100.0kHz 15pF or 10 LS TTL only) 

## **Package Outline** 

- I 14-pin DIL compatible resistance welded enclosure, hermetically sealed with glass to metal seal. Available over 0 to 70°C (IQXO-350) or -40 to 85°C 

- (IQXO-350I) 

## **Standard Frequency Stabilities** 

- I ±25ppm, ±50ppm, ±100ppm 

- (over operating temperature range) 

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∅0.45<br>Pin connections 1 7<br>1.  N/C<br>7.  GND<br>8.  Output<br>14. +Vs 14 8<br>15.24<br>21.0 max<br>5.1 max<br>0.8 max<br>4.0 min<br>7.62<br>13.08 max<br>**----- End of picture text -----**<br>


## **Operating Temperature Ranges** 

> I 0 to 70°C (IQXO-350) 

## **Output Waveform - HCMOS/TTL** 

- I –40 to 85°C (IQXO-350I) 

## **Storage Temperature Range** 

- I –55 to 125°C 

## **Environmental Specification** 

- I Terminal Strength: 0.91kg max. Force perpendicular to top & bottom 

- I Hermetic Seal: not to exceed 1 `x` 10[-8] mBar litres of Helium leakage 

- I Solderability: MIL-STD-202E, Method 208C 

- I Vibration: 10 to 55Hz 0.76mm displacement, sweep 60 seconds, duration 2 hours 

- I Rapid Change of Temperature over Operating Temperature Range: 10 cycles 

- I Shock: 981m/s[2] for 6ms, three shocks in each direction along the three mutually perpendicular planes 

## **Marking** 

- I Model number + Operating Temperature Code (if applicable) 

- I Frequency Stability Code 

- I Frequency Tolerance Code (Optional) 

- I Frequency 

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+Vs tf tr<br>90%Vs<br>50%Vs<br>2.4V<br>1.4V<br>10%Vs<br>0.4V<br>0V t<br>T<br>Duty cycle =  t  x 100(%)<br>T<br>Test Circuit - HCMOS<br>A +Vs<br>Oscillator<br>1 7<br>14 8<br>V 0.1µF 15pF* Oscilloscope<br>Frequency counter<br>**----- End of picture text -----**<br>


- I Date Code (Year/Week) 

*Inclusive of jigging & equipment capacitance 

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## **Electrical Specifications - maximum limiting values when measured in HCMOS test circuit.** 

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Frequency Frequency Supply Voltage Supply Current *Rise Time(tr) *Fall Time(tf) **Duty Cycle Model Number<br>Range Stability<br>1.0 to  ±25ppm, ±50ppm, 5V±0.25V 10mA 10ns 10ns 45/55% IQXO-350, -350I<br>< 100.0kHz ±100ppm<br>100.0 to  ±25ppm, ±50ppm, 5V±0.25V 10mA 15ns 15ns 45/55% IQXO-350, -350I<br>< 250.0kHz ±100ppm<br>250.0kHz to ±25ppm, ±50ppm, 5V±0.25V 30mA 15ns 15ns 45/55% IQXO-350, -350I<br>< 5.0MHz ±100ppm<br>5.0 to ±25ppm, ±50ppm, 5V±0.25V 15mA 10ns 10ns 45/55% IQXO-350, -350I<br>< 16.0MHz ±100ppm<br>16.0 to ±25ppm, ±50ppm, 5V±0.25V 30mA 10ns 10ns 45/55% IQXO-350, -350I<br>< 30.0MHz ±100ppm<br>30.0 to ±25ppm, ±50ppm, 5V±0.25V 40mA 8ns 8ns 45/55% IQXO-350, -350I<br>< 50.0MHz ±100ppm<br>50.0 to ±25ppm, ±50ppm, 5V±0.25V 50mA 6ns 6ns 40/60% IQXO-350, -350I<br>< 70.0MHz ±100ppm<br>70.0 to ±25ppm, ±50ppm, 5V±0.25V 70mA 5ns 5ns 40/60% IQXO-350, -350I<br>160.0MHz ±100ppm<br>Ordering Example 22.0MHz IQXO-350I B<br>Frequency<br>Model number: -350<br>Operating Temperature Code: I = -40 to 85°C Not applicable for 0 to 70°C<br>Frequency Stability: A = ±25ppm, B = ±50ppm, C = ±100ppm<br>**----- End of picture text -----**<br>


**Please note that the rise and fall times listed are the maximum values we specify to cover various frequency breaks. In practise the actual values are generally lower depending upon the spot frequency chosen. For typical values please contact our sales office.** 

## **Test Circuit - TTL** 

## **Test Circuit - LSTTL** 

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A +Vs<br>Oscillator<br>1 7<br>400R<br>14 8 D1<br>D2<br>V 0.1µF 15pF* D3 Oscilloscope<br>D4<br>Frequency counter<br>D1 to D4  = IN4148<br>or equivalent<br>*Inclusive of jigging & equipment capacitance<br>**----- End of picture text -----**<br>


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A +Vs<br>Oscillator<br>1 7<br>2.0k<br>14 8 D1<br>D2<br>V 0.1µF 15pF* D3 Oscilloscope<br>D4<br>Frequency counter<br>D1 to D4  = BAT85<br>or equivalent<br>*Inclusive of jigging & equipment capacitance<br>Note: Pin 1 = No connection on non tri-state models<br>**----- End of picture text -----**<br>


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