Frequency (FM) Modulation and Demodulation Using PLL IC 565 SA-216

FM Modulation - The monolithic function generator IC and Op-Amp IC 741 as non-inverting amplifier wired with Resistors & Capacitors to generate carrier internally and to provide Frequency modulated (FM) output for applied modulating input. facility to adjust the modulation index. fixed Carrier frequency about 1 MHz generated internally.   FM Demodulation: The PLL IC 565 wired with RC network and higher order filter to form a FM demodulation circuit using PLL IC to provide demodulated output for applied FM input. FM detector bandwidth upto 3KHz, facility to change the VCO free running and locking frequency. Built-in fixed DC ±12V/500mA Power supply and maximum test points for studying the experiments.
 
Objectives :

• To Study Principle & circuit of Frequency modulation (FM) and observe it’s FM waveforms.
• To observe & note the change in FM O/P w.r.t. change in modulating I/P signal.
• To determine Modulation index, Bandwidth, sidebands & frequency deviation of FM O/P.
• To Study PLL IC565 as Frequency Demodulation.
• To Observe the change in the change in the O/P w.r.t. change in Modulating I/P.
• To observe and note the change in the O/P w.r.t. change in free running frequency of VCO.

Accessories Included :  

• Set of Patch Cords, Operating Manual
• In Built Test Signal generators options are available on demand.