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courses:el3203_2014:start [2014/03/25 02:05] 127.0.0.1 external edit |
courses:el3203_2014:start [2014/11/05 12:13] (current) nagendra |
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| - 24 Mar. 2014: [[mixer|Mixer]] ([[http://www.ee.iitm.ac.in/~nagendra/EC330/200901/lectures/ec330-mixer1/ec330-mixer1.swf|Lecture]]) | - 24 Mar. 2014: [[mixer|Mixer]] ([[http://www.ee.iitm.ac.in/~nagendra/EC330/200901/lectures/ec330-mixer1/ec330-mixer1.swf|Lecture]]) | ||
| - 7 Apr. 2014: [[doublebalancedmixer|Double balanced mixer]] ([[http://www.ee.iitm.ac.in/~nagendra/EC330/200901/lectures/ec330-mixer2/ec330-mixer2.swf|Lecture]]) | - 7 Apr. 2014: [[doublebalancedmixer|Double balanced mixer]] ([[http://www.ee.iitm.ac.in/~nagendra/EC330/200901/lectures/ec330-mixer2/ec330-mixer2.swf|Lecture]]) | ||
| - | - 16 Apr. 2014: [[finalproject/start|Final project]] | + | - 16 Apr. 2014: [[:courses:ec330_2012:finalproject/start|Final project]] |
| - | - 21 Apr. 2014: [[finalproject/start|Final project]] | + | - 21 Apr. 2014: [[:courses:ec330_2012:finalproject/start|Final project]] |
| - 28 Apr. 2014: Final exam | - 28 Apr. 2014: Final exam | ||
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| Go through these data sheets before wiring up the circuit. Pay particular attention to pinouts, power supply polarity, and maximum voltage ratings. | Go through these data sheets before wiring up the circuit. Pay particular attention to pinouts, power supply polarity, and maximum voltage ratings. | ||
| * {{:courses:ec330:datasheets:4069.pdf|CD4069 CMOS Hex inverter}} | * {{:courses:ec330:datasheets:4069.pdf|CD4069 CMOS Hex inverter}} | ||
| - | * {{LM124.pdf|LM324 Quad opamp(0.5MHz gain bandwidth product)}} | + | * {{:courses:ec330_2012:LM124.pdf|LM324 Quad opamp(0.5MHz gain bandwidth product)}} |
| - | * {{LF347.pdf|LF347 Quad opamp(FET input, 4MHz gain bandwidth product)}} | + | * {{:courses:ec330_2012:LF347.pdf|LF347 Quad opamp(FET input, 4MHz gain bandwidth product)}} |
| * {{:courses:ec330:datasheets:LM311.pdf|LM311 comparator}} | * {{:courses:ec330:datasheets:LM311.pdf|LM311 comparator}} | ||
| * {{:courses:ec330:datasheets:mc1496.pdf|MC1496 double balanced modulator}} | * {{:courses:ec330:datasheets:mc1496.pdf|MC1496 double balanced modulator}} | ||
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| * Measuring "AC" voltages with the multimeter: The digital voltmeter typically measures the average value of the rectified input and gives you readings in rms Volts **assuming that the input is a sine wave**. The readings will be horribly off if the input is not a sine wave. Also, the frequency response of the multimeter is only upto about 500Hz. So **do not** use the multimeter to measure ac signals unless you are absolutely sure of what you are doing. | * Measuring "AC" voltages with the multimeter: The digital voltmeter typically measures the average value of the rectified input and gives you readings in rms Volts **assuming that the input is a sine wave**. The readings will be horribly off if the input is not a sine wave. Also, the frequency response of the multimeter is only upto about 500Hz. So **do not** use the multimeter to measure ac signals unless you are absolutely sure of what you are doing. | ||
| * **Do not** measure differential signals with the oscilloscope by connecting the two leads to the two voltages. The ground terminal of the oscilloscope *must be* connected to the circuit ground. Otherwise some part of the circuit will get shorted out through the grounds of oscilloscope and power supply and the mains ground. | * **Do not** measure differential signals with the oscilloscope by connecting the two leads to the two voltages. The ground terminal of the oscilloscope *must be* connected to the circuit ground. Otherwise some part of the circuit will get shorted out through the grounds of oscilloscope and power supply and the mains ground. | ||
| - | * Short the two power supply rails on the breadboard near the end at which the power supply is connected, **not the far end**. This will minimize the voltage drop across the power supply and ground leads. Excessive supply/ground drops can induce weird behaviour in the circuit. See {{powerconnections.pdf|this picture}}. | + | * Short the two power supply rails on the breadboard near the end at which the power supply is connected, **not the far end**. This will minimize the voltage drop across the power supply and ground leads. Excessive supply/ground drops can induce weird behaviour in the circuit. See {{:courses:ec330_2012:powerconnections.pdf|this picture}}. |