IQTCQO-250 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Temperature Compensated Crystal Oscillators

IQTCXO-250, -251, -252
ISSUE 7; 14 OCTOBER 2004
Delivery Options
I Please contact our sales office for current leadtimes
Description
I IQTCXO-250, -251, -252 are temperature compensated
crystal oscillators (TCXOs), providing a high degree of
frequency stability over a wide temperature range.
Waveform
I Clipped Sine 1V pk - pk min
I Square HCMOS
I Clipped Sine 0.7V pk - pk min
Package Outline
I 14 pin DIL compatible enclosure with internal trimmer
Ageing
I ±1ppm typical first year
Frequency Adjustment
I ±3ppm minimum internal trimmer adjustment
Storage Temperature Range
I –40 to 85°C
Marking
I Model number
I Frequency Stability Code/Operating Temperature Code
I Frequency
I Date Code (Year/Week)
Minimum Order Information Required
I Frequency + Model Number + Frequency Stability
+ Operating Temperature
Outline in mm
∅3.8
18.5±0.3
6.55
Pin Connections
1. N/C
7. GND
8. Output
14. +Vs
∅0.5
4.0±0.2
1
7
14
8
15.24±0.3
7.62±0.3
4.0±0.2
Output Waveform - HCMOS
tf
90%Vs
tr
+Vs
1/2Vs
10%Vs
t
Test Circuit - HCMOS
0V
T
Duty cycle = t x 100(%)
T
A
+Vs
Oscillator
7
14 8
V
0.1µF
15pF* Oscilloscope
Frequency counter
*Inclusive of jigging & equipment capacitance
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