Radio circuits electronic circuits design projects
Radio circuits electronic circuits design projects and schematics various transmitters, receivers, rf amplifiers, rf boosters and other similar radio circuits.
This FM stereo demodulator circuit that use phased lock loop techniques to regenerate the 38kHz subcarrier is designed using the LM1800 integrated circuit .
The LM1800 integrated FM stereo demodulator circuit has numerous features like :
automatic stereo/monaural switching , 45 dB power supply rejection ,wide operating supply voltage range ,excellent channel separation .
A very simple FM transmitter circuit can be designed using MC2833 integrated circuit, designed for cordless telephone and FM communication equipment. It includes a microphone amplifier, voltage controlled oscillator and two auxiliary transistors.
This fm transmitter circuit is a very simple and require few external components and operates in FM band above 100 MHz.
This fm transmitter circuit needs to be powered from a 9 volts battery or from another 9 volts regulated power supply .
