QuartzCrystal Oscillator Free

QuartzCrystal Oscillator shows the impedance / admittance characteristics of quartz crystals over frequency. An external circuit capacitance and an additional series impedance can be put in series to the crystal to evaluate the behaviour in practical circuits.

Switching the structure to 'Pierce/Colpitts Oscillator' allows to evaluate and optimize these popular oscillator configurations, which are used with most processor units. Doing so, the vastly very general manufacturer recommendations can be optimized improving startup time and providing for acceptable crystal power values. A program-controlled optimization routine is provided.

Minimum requirements: Android 4, smartphone / tablet with 5' - display or bigger

Features:

Three structure modes: Quartz Crystal and Pierce/Colpitts Oscillator

Crystal mode:
Series and load resonant crystals
Crystal equivalent parameters variable
Impedance display as well as admittance display
Additional spurious resonance possible
Additional Nyquist diagram possible

Pierce/Colpitts oscillator mode:
Shows transfer function of Pierce/Colpitts feedback network
Allows to optimize feedback
Shows circuit values for 3rd harmonic crystals
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3.4
12 total
5
4
3
2
1
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What's New

25-03-2015, V2.4: Tutorial revised. Minor layout changes. Threading changed.
25-03-2015, V2.3: Oscillator optimization procedure changed. Optimization settings stored.
2015-03-19, V2.2: Bug fixes. Optional element in series to the quartz crystal possible. Info/Help activity updated.
2015-02-17, V2.1: Bug fix in field nominal frequency, english tutorial added
2015-02-05, V2.0: Optimization option for oscillators added. New oscillator type added. Info/Help activity enhanced.
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Additional Information

Updated
April 23, 2015
Size
3.7M
Installs
1,000+
Current Version
2.4
Requires Android
4.0 and up
Content Rating
Everyone
Permissions
Offered By
Helmut H. Herfel
Developer
Helmut H. Herfel Lindenallee 13 b 61350 Bad Homburg
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