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| IQTCXO-250, -251, -252 ISSUE 7; 14 OCTOBER 2004 Delivery Options I Outline in mm 18.50.3 12.00.3 Pin Connections 1. N/C 7. GND 8. Output 14. +Vs 1.00.2 4.00.2 7.620.3 tf tr +Vs 1/2Vs 0V t T Duty cycle = t x 100(%) T +Vs 15pF* Oscilloscope Frequency counter *Inclusive of jigging & equipment capacitance Please contact our sales office for current leadtimes 3.8 Description I Waveform I Clipped Sine 1V pk - pk min Square HCMOS Clipped Sine 0.7V pk - pk min 4.00.2 0.5 I I Package Outline I 14 pin DIL compatible enclosure with internal trimmer 1 14 7 8 Ageing I 1ppm typical first year 15.240.3 Frequency Adjustment I 3ppm minimum internal trimmer adjustment Output Waveform - HCMOS Storage Temperature Range I -40 to 85C 90%Vs Marking I Model number Frequency Stability Code/Operating Temperature Code Frequency Date Code (Year/Week) 10%Vs I LEADED TCXOs I I Minimum Order Information Required I Frequency + Model Number + Frequency Stability + Operating Temperature Test Circuit - HCMOS A Oscillator 7 14 8 V 0.1F 72 4.0 min 5.0 max IQTCXO-250, -251, -252 are temperature compensated crystal oscillators (TCXOs), providing a high degree of frequency stability over a wide temperature range. 6.55 Electrical Specifications - maximum limiting values when measured in test circuit Frequency Range 3.20 to 40.0MHz 3.20 to 40.0MHz 3.20 to 40.0MHz Supply Voltage 5V0.25V 5V0.25V 3V0.15V Supply Current Output Waveform 5mA 20mA 3mA Clipped Sine Square Clipped Sine Output 1Vpk-pk min HCMOS 0.7Vpk-pk min Duty Cycle -- 40/60% -- Model Number IQTCXO-250 IQTCXO-251 IQTCXO-252 Frequency Stabilities Available Over Operating Temperature Ranges Operating Frequency Range 0 to 50C -10 to 60C -20 to 70C -30 to 75C -40 to 85C Ordering Example Frequency Model number Frequency Stability Vs Operating Temperature Code Frequency Stabilities Vs Operating Temperature Range 1.5ppm Code CP -- -- -- -- 2.0ppm Code GP Code GR -- -- -- 24.0MHz 2.5ppm Code HP Code HR Code HS Code HU -- IQTCXO-250 HR 5.0ppm Code KP Code KR Code KS Code KU Code KX Test Circuit - Clipped Sine A Oscillator 14 7 8 LEADED TCXOs +Vs V 0.1F 10pF* 10k Oscilloscope Frequency counter *Inclusive of jigging & equipment capacitance 73 |
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