1. Circuit Lab. Experiment-3 Operating the function generator and digital oscilloscope

2. Quiz A(t)=5.sin(100  t) –Draw the graphic of A(t) signal –Calculate amplitude, frequency and time period.

3. FUNCTION GENERATOR GW INSTEK SFG-2120 -Generation of Test Signals -Square Wave -Sine Wave -Triangular Wave -Digitally Controlled Frequency (0.1 Hz... 20 MHz) -Manually Controlled Amplitude (0...10V (pp)) -50 ohm BNC output -TTL/CMOS BNC output -Counter BNC input for frequency counter -Amplitude, Frequency Modulation, Variable Mod. index

4. FUNCTION GENERATOR GW INSTEK SFG-2120

10. How can we see the signal? Oscilloscope  GW Instek GDS 1102  100 MHz  2 channels  1 M ohm input impedance  FFT, A*B, A+B, A-B  Digital Measurements (Vpp, Vdc, Frequency...)  Saving Graphical Data (SD Card Interface)

11. DIGITAL OSCILLOSCOPE GW Instek GDS-1102

12. Connection BNC Connectors (RF Connector) (British Naval Connector)

13. Cable RG-58/U Coaxial Cable Low-power signal and RF connections Characteristic impedance: 50 ohm A: outer plastic sheath B: woven copper shield C: inner dielectric insulator D: copper core

14. Oscilloscope Probe

15. Equivalent Circuits 1x Probe R1=1M ohm C1=1-10 pF 10x Probe R1=9M ohm C1=1-10pF Oscilloscope Input R2=1M ohm C2=20 pF

16. Osilloscope Probe Test Check the probe set : 1x or 10x Connect the BNC connector of the Oscilloscope Probe to CH1 Connect the test connector of the oscilloscope probe to Test Output Press Run/Stop Key Measure the frequency and the amplitude of the test signal

17. Osilloscope Probe Compensation

18. Volt Division of CH1 Volt Division of CH2 Time Division

19. 1 st Job: A(t)=5.sin(100  t) –Amplitude? peak (p) peak-to-peak (pp) –Time period? (seconds) –Frequency? (Hertz)

20. 2 nd Job Derive the sine signal using function generator and oscilloscope

21. 3 rd Job Generate –4 V (p-p) –10 kHz –Square Wave

22. 4 th Job Generate –100 mV (p-p) –1 kHz –Sine Wave

23. Cursors