IQTCXO-252 데이터 시트보기 (PDF) - Unspecified

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IQTCXO-252

Temperature Compensated Crystal Oscillators

Unspecified 

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

72

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