3DTrackStikOctober 1998 Electrical Requirements Schematic Re

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3DTrackStikOctober 1998 Electrical Requirements Schematic Re

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106B Generic Specification
3DTrackStikOctober 1998
Electrical Requirements Schematic
Resistor Value
1.2.1 When connected shown schematic 1.1, resistance measured between bias 3200 ohms ±5%. 1.2.2 With force applied stick, matched matched such that voltage measured voltage applied bias 1.0%.
Insulation Resistance
1.3.1 Insulation resistance shall exceed Megohms between isolated pinouts &P6) when measured connector cable.
Electrical Output
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106B Generic Specification
3DTrackStikOctober 1998
Output Under Load
2.1.1 Output 2.1.1.1 output voltage differential measured between GND. output voltage differential measured between GND. With volts applied between bias GND, output voltage change will when gram force applied perpendicular each face axis post from bare plastic cap) ceramic post.
2.1.1.2
2.1.1.3
2.1.2 Output 2.1.2.1
Referring Schematic 1.1. With volts applied bias gram load applied parallel axis stick, voltage measured between will change 0.45mV ±20%. Alternately, load 500g) voltage 12V), applied bias, output calculated .225uV/gm/V ±20%.
2.1.2.2
2.1.3 test conditions volts applied Bias grams applied load. Measurements made 23EC room temperature
Cursor Direction
2.2.1 output transducer must produce cursor movement within true direction applied force.
Output Linearity
2.3.1 plot output force should within straight line. slope every point should within average slope this line.
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106B Generic Specification
3DTrackStikOctober 1998
Output Force
Percent Max. Output Grams
Mechanical Requirements General Information
3.1.1 loads applied ceramic post from bare plastic cap) ceramic post. 3.1.2 base assembly must rigidly fixed periphery base during mechanical testing. 3.1.3 Electrical measurements made appropriate pads base free cable attached base.
Life Test
3.2.1 Life Test (X/Y) Parts undergo axis life testing million cycles 250300 gram resultant load applied perpendicular sensor post axis. radial angle load shall varied continuously rotating arm. Each cycle average duration TM0.02 seconds. (Approximately 3,000 revolutions minute) 3.2.1.1 Fixtures used life testing must induce torsion post. 3.2.1.2 resistors shall periodically monitored during life test (Para 3.2.1). resistors connected series total resistance measured. series resistance must within initial static resistance value under same applied load. (Resistance measurement under dynamic loading required determine intermittent failures.) 3.2.1.3. Test Criteria 3.2.1.3.1 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2. 3.2.1.3.2 axis output meet requirements Paragraph 2.1.2
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106B Generic Specification
3DTrackStikOctober 1998
3.2.2 Life Test axis) Parts undergo axis life testing million cycles. cycle consists applying zero grams ramping 350-400 grams ramping back zero grams. load applied parallel sensor post axis stick. cycle rate should approximately 500/minute. 3.2.2.1 Test Criteria 3.2.2.1.1 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2. 3.2.2.1.2 axis output meet requirements Paragraph 2.1.2
Strength
3.3.1 Horizontal Strength 3.3.1.1 ±0.1 load applied gradually from bare plastic cap) ceramic post, perpendicular each face axis post 3.3.1.2 There shall physical damage device result strength testing. 3.3.1.3 axis output meet requirements Paragraph 2.1.2. 3.3.2 Vertical Strength 3.3.2.1 load applied gradually ceramic post parallel axis post. 3.3.2.2 pointing stick mounted into fixture that allows bottom stick supported after applied force exceeds grams 3.3.2.3 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2. 3.3.2.4 axis output meet requirements Paragraph 2.1.2. 3.3.2.5 There shall physical damage device result strength testing. 3.3.4 Cable Strength 3.3.4.1 Cable attachment base must withstand gram peel test without damage.
3.3.5 Pull
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106B Generic Specification
3DTrackStikOctober 1998
3.3.5.1
plastic shall remain place when subjected gram pull force parallel axis post.
Sensitivity
Process Sensitivity (Direct Discharge) 4.1.1 device shall withstand maximum 6,000 volts when mounted keyboard pulse applied through cable pads corresponding strain resistors. 4.1.2 Test Setup TPA-2 Discharge Ball. base assembly under test shall connected test ground discharge ball held near input cable pads until spark discharged. device shall subjected positive polarity discharges 4.1.3 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2. Product Sensitivity (Air Discharge Reference 1000-4-2) 4.2.1 device shall withstand maximum 16,000 volts simulated keyboard mounting with base pointing stick cable pads grounded. 4.2.2 Test Setup TPA-2 Discharge Ball. Connect equipment through resistor. Connect equipment through resistor connection Bias Connect directly Equipment discharge ball held near pointing stick post with rubber place until spark discharged. spark discharged result electrical insulation, then device considered pass test. device shall subjected positive polarity discharges. 4.2.3 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2. Product Handling 4.3.1 Standard precautions handling electrostatic sensitive material must followed during handling assembly device.
Environmental Tests
Page
106B Generic Specification
3DTrackStikOctober 1998
Thermal Shock
5.1.1 Thermal cycle parts from -40EC +80EC cycles. hour cycle. 5.1.2 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2. 5.1.3 axis output meet requirements Paragraph 2.1.2
Cold/Hot Storage
5.2.1 Store parts -20EC hours followed storage +80EC hours. 5.2.2 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2
Temperature Humidity Cycling
5.3.1 Expose parts +25EC +60EC @95% cycles. Eight hours cycle 5.3.2 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2.
Electromigration
5.4.1 Expose parts hours 50EC, relative humidity, with volt bias applied across each resistor. bias applied after initial hours indicated temperature humidity. 5.4.2 Maximum resistance change ±1.0% with ratio matching meet requirements paragraph 1.2.2.
Flamability
5.5.1 Must meet 94V-0
Mechanical Outline
Page
106B Generic Specification
3DTrackStikOctober 1998
©Copyright 1998 PATENTS PENDING
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3DTrackStikOctober 1998 Electrical Requirements Schematic Re

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