IQTCXO-250, -251, -252
ISSUE 7; 14 OCTOBER 2004 Delivery Options
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Outline in mm
18.5±0.3 12.0±0.3 Pin Connections 1. N/C 7. GND 8. Output 14. +Vs 1.0±0.2 4.0±0.2 7.62±0.3 tf tr +Vs 1/2Vs 0V t T Duty cycle = t x 100(%) T +Vs 15pF* Oscilloscope Frequency counter *Inclusive of jigging & equipment capacitance
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∅3.8
Description
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Waveform
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Clipped Sine 1V pk - pk min Square HCMOS Clipped Sine 0.7V pk - pk min
4.0±0.2 ∅0.5
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Package Outline
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14 pin DIL compatible enclosure with internal trimmer
1 14
7 8
Ageing
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±1ppm typical first year
15.24±0.3
Frequency Adjustment
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±3ppm minimum internal trimmer adjustment Output Waveform - HCMOS
Storage Temperature Range
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–40 to 85°C
90%Vs
Marking
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Model number Frequency Stability Code/Operating Temperature Code Frequency Date Code (Year/Week)
10%Vs
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LEADED TCXOs
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Minimum Order Information Required
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Frequency + Model Number + Frequency Stability + Operating Temperature
Test Circuit - HCMOS
A Oscillator 7 14 8
V
0.1 µF
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 5V±0.25V 5V±0.25V 3V±0.15V 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 50°C -10 to 60°C -20 to 70°C -30 to 75°C -40 to 85°C 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 0.1 µF 7 8 10pF *
LEADED TCXOs
+Vs
V
10k
Oscilloscope
Frequency counter *Inclusive of jigging & equipment capacitance
73
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