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Issue: 03 Date: 2005-05-22 Specification AXLE20S Oscillator type : TCXO with Stratum III long-term stability option
Parameter
Frequency range Standard frequencies Frequency stability Initial tolerance vs. temperature in operating temperature range (steady state)
min.
typ.
max.
Unit
Condition
vs. supply voltage variation vs. load change 24 hours drift 24 hours holdover (only for Option I = "08") long term (aging) 1st year Long term stability (overall)2 15 years Frequency adjustment range Electronic Frequency Control (EFC) RF output Signal waveform Load Rise & decay time Symmetry (duty cycle) Start-up time Phase noise @16.384 MHz
9 33 MHz 10 / 12.8 / 13 / 16.384 /19.44 MHz ppm 1 ppm Frequency stability 2.5 ppm 1.5 ppm 0.8 ppm 0.2 ppm 0.2 ppm 0.04 ppm 0.37 ppm 1 4.6 N.A. HCMOS 15 40 -95 -125 -140 -145 5.0 3.3 10 60 4 ppm ppm ppm
@+25C Temperature -40~+85C -20~+70C - 0~+50C
Option I
"25" "15" "08"
GR-1244-CORE temperature change of less than 3 (Note 3) @ +40C See Notes 2 and 3 N.A.
Supply voltage VS
4.75 3.13
Current consumption (steady state) mA Enable/disable function -40 +85 C Operable temperature range -40 +85 C Storage temperature range 19.1x13.1x5 max mm IEC 61837 CO 30 Enclosure (see drawing) 5 gram Weight Tape & reel IEC 60286-3 Packing 1500 V HBM as IEC 61000-4-2 ESD Sensitivity Notes: 1. Terminology and test conditions are according to IEC standard IEC60679-1, unless otherwise stated 2. Overall frequency stability = initial tolerance + temp.stability + supply & load change + aging 3. Stratum III holdover and long term overall stability only available for Option I = "08"
5.25 3.47 25
pF ns % ms dBc dBc dBc dBc V
@ VS/2 10 Hz 100 Hz 1000 Hz 10000 Hz Option II ="50" Option II="33" @ +25C
Ordering Code:
Model (Specification) AXLE20 Option I 25 Option II Frequency [MHz] 33 12.800
GmbH & Co. KG Wasemweg 5 D-74821 Mosbach Germany
AXLE20S page 1(2)
www.axtal.com fon: +49 (6261) 939834 fax: +49 (6261) 939836 E-mail: info@axtal.com
Enclosure drawing
Pin connections
Pin # Symbol Function 1 N.C. No Connection 2 GND Ground 4 RF OUT RF Output 5 Vs Supply Voltage Other pins: Internal connections
Environmental conditions
Test Visual inspection, dimensions Sealing tests (if applicable) Solderability Resistance to soldering heat Shock* Bump* Free fall* IEC 60068 Part ... IEC 60679-1 clause ... 4.3 4.6.2 4.6.3 Test conditions Enclosure styles as in IEC 60679-3 or 61837, if applicable Gross leak: Test Qc, Fine leak: Test Qk Test Ta (235 5)C Method 1 Test Tb Method 1A, 5s Test Ea, 3 x per axes 100g, 6 ms half-sine pulse Test Eb, 4000 bumps per Axes, 40g, 6 ms Test Ed procedure 1, 2 drops from 1m height Test Fc, 30 min per axes, 10 Hz - 55 Hz 0,75mm; 55 Hz - 2 kHz, 10g Test Na, 10 cycles at extremes of operating temperature range Test Ba, 16 h at upper temperature indicated by climatic category Test Db variant 1 severity b), 55C/95% r.H., 6 cycles Test Aa, 2 h at lower temperature indicated by climatic category Sequence of 4.6.14, 4.6.15 (1st cycle), 4.6.16, 4.6.15 (5 cycles) Test Ca, 56 days
2-17 2-20 2-58 2-27 2-29 2-32
4.6.8 4.6.6 4.6.9 4.6.7
Vibration, sinusoidal* 2-6
Rapid change of temperature Dry heat Damp heat, cyclic* Cold Climatic sequence* Damp heat, steady state* Endurance tests - ageing - extended aging
2-14 2-2 2-30 2-1 1-7 2-3
4.6.5 4.6.14 4.6.15 4.6.16 4.6.17 4.6.18
4.7.1 4.7.2
30 days @ 85C, OCXO @25C 1000h, 2000h, 8000h @85C AXLE20S page 2(2) www.axtal.com fon: +49 (6261) 939834 fax: +49 (6261) 939836 E-mail: info@axtal.com
GmbH & Co. KG Wasemweg 5 D-74821 Mosbach Germany

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